72180720

素因数分解:

$2^4\times 3^5\times 5^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1$

素因数の和:154

約数の個数: 240

約数和(自身を含む): 259983360

約数和(自身を除く): 187802640

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 47, 48, 54, 60, 72, 79, 80, 81, 90, 94, 108, 120, 135, 141, 144, 158, 162, 180, 188, 216, 235, 237, 240, 243, 270, 282, 316, 324, 360, 376, 395, 405, 423, 432, 470, 474, 486, 540, 564, 632, 648, 705, 711, 720, 752, 790, 810, 846, 940, 948, 972, 1080, 1128, 1185, 1215, 1264, 1269, 1296, 1410, 1422, 1580, 1620, 1692, 1880, 1896, 1944, 2115, 2133, 2160, 2256, 2370, 2430, 2538, 2820, 2844, 3160, 3240, 3384, 3555, 3713, 3760, 3792, 3807, 3888, 4230, 4266, 4740, 4860, 5076, 5640, 5688, 6320, 6345, 6399, 6480, 6768, 7110, 7426, 7614, 8460, 8532, 9480, 9720, 10152, 10665, 11139, 11280, 11376, 11421, 12690, 12798, 14220, 14852, 15228, 16920, 17064, 18565, 18960, 19035, 19197, 19440, 20304, 21330, 22278, 22842, 25380, 25596, 28440, 29704, 30456, 31995, 33417, 33840, 34128, 37130, 38070, 38394, 42660, 44556, 45684, 50760, 51192, 55695, 56880, 57105, 59408, 60912, 63990, 66834, 74260, 76140, 76788, 85320, 89112, 91368, 95985, 100251, 101520, 102384, 111390, 114210, 127980, 133668, 148520, 152280, 153576, 167085, 170640, 178224, 182736, 191970, 200502, 222780, 228420, 255960, 267336, 297040, 300753, 304560, 307152, 334170, 383940, 401004, 445560, 456840, 501255, 511920, 534672, 601506, 668340, 767880, 802008, 891120, 902259, 913680, 1002510, 1203012, 1336680, 1503765, 1535760, 1604016, 1804518, 2005020, 2406024, 2673360, 3007530, 3609036, 4010040, 4511295, 4812048, 6015060, 7218072, 8020080, 9022590, 12030120, 14436144, 18045180, 24060240, 36090360, 72180720]

約数ペア:

[(1, 72180720), (2, 36090360), (3, 24060240), (4, 18045180), (5, 14436144), (6, 12030120), (8, 9022590), (9, 8020080), (10, 7218072), (12, 6015060), (15, 4812048), (16, 4511295), (18, 4010040), (20, 3609036), (24, 3007530), (27, 2673360), (30, 2406024), (36, 2005020), (40, 1804518), (45, 1604016), (47, 1535760), (48, 1503765), (54, 1336680), (60, 1203012), (72, 1002510), (79, 913680), (80, 902259), (81, 891120), (90, 802008), (94, 767880), (108, 668340), (120, 601506), (135, 534672), (141, 511920), (144, 501255), (158, 456840), (162, 445560), (180, 401004), (188, 383940), (216, 334170), (235, 307152), (237, 304560), (240, 300753), (243, 297040), (270, 267336), (282, 255960), (316, 228420), (324, 222780), (360, 200502), (376, 191970), (395, 182736), (405, 178224), (423, 170640), (432, 167085), (470, 153576), (474, 152280), (486, 148520), (540, 133668), (564, 127980), (632, 114210), (648, 111390), (705, 102384), (711, 101520), (720, 100251), (752, 95985), (790, 91368), (810, 89112), (846, 85320), (940, 76788), (948, 76140), (972, 74260), (1080, 66834), (1128, 63990), (1185, 60912), (1215, 59408), (1264, 57105), (1269, 56880), (1296, 55695), (1410, 51192), (1422, 50760), (1580, 45684), (1620, 44556), (1692, 42660), (1880, 38394), (1896, 38070), (1944, 37130), (2115, 34128), (2133, 33840), (2160, 33417), (2256, 31995), (2370, 30456), (2430, 29704), (2538, 28440), (2820, 25596), (2844, 25380), (3160, 22842), (3240, 22278), (3384, 21330), (3555, 20304), (3713, 19440), (3760, 19197), (3792, 19035), (3807, 18960), (3888, 18565), (4230, 17064), (4266, 16920), (4740, 15228), (4860, 14852), (5076, 14220), (5640, 12798), (5688, 12690), (6320, 11421), (6345, 11376), (6399, 11280), (6480, 11139), (6768, 10665), (7110, 10152), (7426, 9720), (7614, 9480), (8460, 8532)]