19159920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1$

素因数の和:144

約数の個数: 240

約数和(自身を含む): 73120320

約数和(自身を除く): 53960400

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 23, 24, 26, 30, 36, 39, 40, 45, 46, 48, 52, 60, 65, 69, 72, 78, 80, 89, 90, 92, 104, 115, 117, 120, 130, 138, 144, 156, 178, 180, 184, 195, 207, 208, 230, 234, 240, 260, 267, 276, 299, 312, 345, 356, 360, 368, 390, 414, 445, 460, 468, 520, 534, 552, 585, 598, 624, 690, 712, 720, 780, 801, 828, 890, 897, 920, 936, 1035, 1040, 1068, 1104, 1157, 1170, 1196, 1335, 1380, 1424, 1495, 1560, 1602, 1656, 1780, 1794, 1840, 1872, 2047, 2070, 2136, 2314, 2340, 2392, 2670, 2691, 2760, 2990, 3120, 3204, 3312, 3471, 3560, 3588, 4005, 4094, 4140, 4272, 4485, 4628, 4680, 4784, 5340, 5382, 5520, 5785, 5980, 6141, 6408, 6942, 7120, 7176, 8010, 8188, 8280, 8970, 9256, 9360, 10235, 10413, 10680, 10764, 11570, 11960, 12282, 12816, 13455, 13884, 14352, 16020, 16376, 16560, 17355, 17940, 18423, 18512, 20470, 20826, 21360, 21528, 23140, 23920, 24564, 26611, 26910, 27768, 30705, 32040, 32752, 34710, 35880, 36846, 40940, 41652, 43056, 46280, 49128, 52065, 53222, 53820, 55536, 61410, 64080, 69420, 71760, 73692, 79833, 81880, 83304, 92115, 92560, 98256, 104130, 106444, 107640, 122820, 133055, 138840, 147384, 159666, 163760, 166608, 184230, 208260, 212888, 215280, 239499, 245640, 266110, 277680, 294768, 319332, 368460, 399165, 416520, 425776, 478998, 491280, 532220, 638664, 736920, 798330, 833040, 957996, 1064440, 1197495, 1277328, 1473840, 1596660, 1915992, 2128880, 2394990, 3193320, 3831984, 4789980, 6386640, 9579960, 19159920]

約数ペア:

[(1, 19159920), (2, 9579960), (3, 6386640), (4, 4789980), (5, 3831984), (6, 3193320), (8, 2394990), (9, 2128880), (10, 1915992), (12, 1596660), (13, 1473840), (15, 1277328), (16, 1197495), (18, 1064440), (20, 957996), (23, 833040), (24, 798330), (26, 736920), (30, 638664), (36, 532220), (39, 491280), (40, 478998), (45, 425776), (46, 416520), (48, 399165), (52, 368460), (60, 319332), (65, 294768), (69, 277680), (72, 266110), (78, 245640), (80, 239499), (89, 215280), (90, 212888), (92, 208260), (104, 184230), (115, 166608), (117, 163760), (120, 159666), (130, 147384), (138, 138840), (144, 133055), (156, 122820), (178, 107640), (180, 106444), (184, 104130), (195, 98256), (207, 92560), (208, 92115), (230, 83304), (234, 81880), (240, 79833), (260, 73692), (267, 71760), (276, 69420), (299, 64080), (312, 61410), (345, 55536), (356, 53820), (360, 53222), (368, 52065), (390, 49128), (414, 46280), (445, 43056), (460, 41652), (468, 40940), (520, 36846), (534, 35880), (552, 34710), (585, 32752), (598, 32040), (624, 30705), (690, 27768), (712, 26910), (720, 26611), (780, 24564), (801, 23920), (828, 23140), (890, 21528), (897, 21360), (920, 20826), (936, 20470), (1035, 18512), (1040, 18423), (1068, 17940), (1104, 17355), (1157, 16560), (1170, 16376), (1196, 16020), (1335, 14352), (1380, 13884), (1424, 13455), (1495, 12816), (1560, 12282), (1602, 11960), (1656, 11570), (1780, 10764), (1794, 10680), (1840, 10413), (1872, 10235), (2047, 9360), (2070, 9256), (2136, 8970), (2314, 8280), (2340, 8188), (2392, 8010), (2670, 7176), (2691, 7120), (2760, 6942), (2990, 6408), (3120, 6141), (3204, 5980), (3312, 5785), (3471, 5520), (3560, 5382), (3588, 5340), (4005, 4784), (4094, 4680), (4140, 4628), (4272, 4485)]