20632560

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{389}}^1$

素因数の和:435

約数の個数: 160

約数和(自身を含む): 73120320

約数和(自身を除く): 52487760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 17, 20, 24, 26, 30, 34, 39, 40, 48, 51, 52, 60, 65, 68, 78, 80, 85, 102, 104, 120, 130, 136, 156, 170, 195, 204, 208, 221, 240, 255, 260, 272, 312, 340, 389, 390, 408, 442, 510, 520, 624, 663, 680, 778, 780, 816, 884, 1020, 1040, 1105, 1167, 1326, 1360, 1556, 1560, 1768, 1945, 2040, 2210, 2334, 2652, 3112, 3120, 3315, 3536, 3890, 4080, 4420, 4668, 5057, 5304, 5835, 6224, 6613, 6630, 7780, 8840, 9336, 10114, 10608, 11670, 13226, 13260, 15171, 15560, 17680, 18672, 19839, 20228, 23340, 25285, 26452, 26520, 30342, 31120, 33065, 39678, 40456, 46680, 50570, 52904, 53040, 60684, 66130, 75855, 79356, 80912, 85969, 93360, 99195, 101140, 105808, 121368, 132260, 151710, 158712, 171938, 198390, 202280, 242736, 257907, 264520, 303420, 317424, 343876, 396780, 404560, 429845, 515814, 529040, 606840, 687752, 793560, 859690, 1031628, 1213680, 1289535, 1375504, 1587120, 1719380, 2063256, 2579070, 3438760, 4126512, 5158140, 6877520, 10316280, 20632560]

約数ペア:

[(1, 20632560), (2, 10316280), (3, 6877520), (4, 5158140), (5, 4126512), (6, 3438760), (8, 2579070), (10, 2063256), (12, 1719380), (13, 1587120), (15, 1375504), (16, 1289535), (17, 1213680), (20, 1031628), (24, 859690), (26, 793560), (30, 687752), (34, 606840), (39, 529040), (40, 515814), (48, 429845), (51, 404560), (52, 396780), (60, 343876), (65, 317424), (68, 303420), (78, 264520), (80, 257907), (85, 242736), (102, 202280), (104, 198390), (120, 171938), (130, 158712), (136, 151710), (156, 132260), (170, 121368), (195, 105808), (204, 101140), (208, 99195), (221, 93360), (240, 85969), (255, 80912), (260, 79356), (272, 75855), (312, 66130), (340, 60684), (389, 53040), (390, 52904), (408, 50570), (442, 46680), (510, 40456), (520, 39678), (624, 33065), (663, 31120), (680, 30342), (778, 26520), (780, 26452), (816, 25285), (884, 23340), (1020, 20228), (1040, 19839), (1105, 18672), (1167, 17680), (1326, 15560), (1360, 15171), (1556, 13260), (1560, 13226), (1768, 11670), (1945, 10608), (2040, 10114), (2210, 9336), (2334, 8840), (2652, 7780), (3112, 6630), (3120, 6613), (3315, 6224), (3536, 5835), (3890, 5304), (4080, 5057), (4420, 4668)]