18908760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1$

素因数の和:98

約数の個数: 256

約数和(自身を含む): 69672960

約数和(自身を除く): 50764200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 17, 20, 23, 24, 26, 30, 31, 34, 39, 40, 46, 51, 52, 60, 62, 65, 68, 69, 78, 85, 92, 93, 102, 104, 115, 120, 124, 130, 136, 138, 155, 156, 170, 184, 186, 195, 204, 221, 230, 248, 255, 260, 276, 299, 310, 312, 340, 345, 372, 390, 391, 403, 408, 442, 460, 465, 510, 520, 527, 552, 598, 620, 663, 680, 690, 713, 744, 780, 782, 806, 884, 897, 920, 930, 1020, 1054, 1105, 1173, 1196, 1209, 1240, 1326, 1380, 1426, 1495, 1560, 1564, 1581, 1612, 1768, 1794, 1860, 1955, 2015, 2040, 2108, 2139, 2210, 2346, 2392, 2418, 2635, 2652, 2760, 2852, 2990, 3128, 3162, 3224, 3315, 3565, 3588, 3720, 3910, 4030, 4216, 4278, 4420, 4485, 4692, 4836, 5083, 5270, 5304, 5704, 5865, 5980, 6045, 6324, 6630, 6851, 7130, 7176, 7820, 7905, 8060, 8556, 8840, 8970, 9269, 9384, 9672, 10166, 10540, 10695, 11730, 11960, 12090, 12121, 12648, 13260, 13702, 14260, 15249, 15640, 15810, 16120, 17112, 17940, 18538, 20332, 20553, 21080, 21390, 23460, 24180, 24242, 25415, 26520, 27404, 27807, 28520, 30498, 31620, 34255, 35880, 36363, 37076, 40664, 41106, 42780, 46345, 46920, 48360, 48484, 50830, 54808, 55614, 60605, 60996, 63240, 68510, 72726, 74152, 76245, 82212, 85560, 92690, 96968, 101660, 102765, 111228, 121210, 121992, 137020, 139035, 145452, 152490, 157573, 164424, 181815, 185380, 203320, 205530, 222456, 242420, 274040, 278070, 290904, 304980, 315146, 363630, 370760, 411060, 472719, 484840, 556140, 609960, 630292, 727260, 787865, 822120, 945438, 1112280, 1260584, 1454520, 1575730, 1890876, 2363595, 3151460, 3781752, 4727190, 6302920, 9454380, 18908760]

約数ペア:

[(1, 18908760), (2, 9454380), (3, 6302920), (4, 4727190), (5, 3781752), (6, 3151460), (8, 2363595), (10, 1890876), (12, 1575730), (13, 1454520), (15, 1260584), (17, 1112280), (20, 945438), (23, 822120), (24, 787865), (26, 727260), (30, 630292), (31, 609960), (34, 556140), (39, 484840), (40, 472719), (46, 411060), (51, 370760), (52, 363630), (60, 315146), (62, 304980), (65, 290904), (68, 278070), (69, 274040), (78, 242420), (85, 222456), (92, 205530), (93, 203320), (102, 185380), (104, 181815), (115, 164424), (120, 157573), (124, 152490), (130, 145452), (136, 139035), (138, 137020), (155, 121992), (156, 121210), (170, 111228), (184, 102765), (186, 101660), (195, 96968), (204, 92690), (221, 85560), (230, 82212), (248, 76245), (255, 74152), (260, 72726), (276, 68510), (299, 63240), (310, 60996), (312, 60605), (340, 55614), (345, 54808), (372, 50830), (390, 48484), (391, 48360), (403, 46920), (408, 46345), (442, 42780), (460, 41106), (465, 40664), (510, 37076), (520, 36363), (527, 35880), (552, 34255), (598, 31620), (620, 30498), (663, 28520), (680, 27807), (690, 27404), (713, 26520), (744, 25415), (780, 24242), (782, 24180), (806, 23460), (884, 21390), (897, 21080), (920, 20553), (930, 20332), (1020, 18538), (1054, 17940), (1105, 17112), (1173, 16120), (1196, 15810), (1209, 15640), (1240, 15249), (1326, 14260), (1380, 13702), (1426, 13260), (1495, 12648), (1560, 12121), (1564, 12090), (1581, 11960), (1612, 11730), (1768, 10695), (1794, 10540), (1860, 10166), (1955, 9672), (2015, 9384), (2040, 9269), (2108, 8970), (2139, 8840), (2210, 8556), (2346, 8060), (2392, 7905), (2418, 7820), (2635, 7176), (2652, 7130), (2760, 6851), (2852, 6630), (2990, 6324), (3128, 6045), (3162, 5980), (3224, 5865), (3315, 5704), (3565, 5304), (3588, 5270), (3720, 5083), (3910, 4836), (4030, 4692), (4216, 4485), (4278, 4420)]