21532680

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1$

素因数の和:180

約数の個数: 192

約数和(自身を含む): 77837760

約数和(自身を除く): 56305080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 30, 36, 39, 40, 43, 45, 52, 60, 65, 72, 78, 86, 90, 104, 107, 117, 120, 129, 130, 156, 172, 180, 195, 214, 215, 234, 258, 260, 312, 321, 344, 360, 387, 390, 428, 430, 468, 516, 520, 535, 559, 585, 642, 645, 774, 780, 856, 860, 936, 963, 1032, 1070, 1118, 1170, 1284, 1290, 1391, 1548, 1560, 1605, 1677, 1720, 1926, 1935, 2140, 2236, 2340, 2568, 2580, 2782, 2795, 3096, 3210, 3354, 3852, 3870, 4173, 4280, 4472, 4601, 4680, 4815, 5031, 5160, 5564, 5590, 6420, 6708, 6955, 7704, 7740, 8346, 8385, 9202, 9630, 10062, 11128, 11180, 12519, 12840, 13416, 13803, 13910, 15480, 16692, 16770, 18404, 19260, 20124, 20865, 22360, 23005, 25038, 25155, 27606, 27820, 33384, 33540, 36808, 38520, 40248, 41409, 41730, 46010, 50076, 50310, 55212, 55640, 59813, 62595, 67080, 69015, 82818, 83460, 92020, 100152, 100620, 110424, 119626, 125190, 138030, 165636, 166920, 179439, 184040, 201240, 207045, 239252, 250380, 276060, 299065, 331272, 358878, 414090, 478504, 500760, 538317, 552120, 598130, 717756, 828180, 897195, 1076634, 1196260, 1435512, 1656360, 1794390, 2153268, 2392520, 2691585, 3588780, 4306536, 5383170, 7177560, 10766340, 21532680]

約数ペア:

[(1, 21532680), (2, 10766340), (3, 7177560), (4, 5383170), (5, 4306536), (6, 3588780), (8, 2691585), (9, 2392520), (10, 2153268), (12, 1794390), (13, 1656360), (15, 1435512), (18, 1196260), (20, 1076634), (24, 897195), (26, 828180), (30, 717756), (36, 598130), (39, 552120), (40, 538317), (43, 500760), (45, 478504), (52, 414090), (60, 358878), (65, 331272), (72, 299065), (78, 276060), (86, 250380), (90, 239252), (104, 207045), (107, 201240), (117, 184040), (120, 179439), (129, 166920), (130, 165636), (156, 138030), (172, 125190), (180, 119626), (195, 110424), (214, 100620), (215, 100152), (234, 92020), (258, 83460), (260, 82818), (312, 69015), (321, 67080), (344, 62595), (360, 59813), (387, 55640), (390, 55212), (428, 50310), (430, 50076), (468, 46010), (516, 41730), (520, 41409), (535, 40248), (559, 38520), (585, 36808), (642, 33540), (645, 33384), (774, 27820), (780, 27606), (856, 25155), (860, 25038), (936, 23005), (963, 22360), (1032, 20865), (1070, 20124), (1118, 19260), (1170, 18404), (1284, 16770), (1290, 16692), (1391, 15480), (1548, 13910), (1560, 13803), (1605, 13416), (1677, 12840), (1720, 12519), (1926, 11180), (1935, 11128), (2140, 10062), (2236, 9630), (2340, 9202), (2568, 8385), (2580, 8346), (2782, 7740), (2795, 7704), (3096, 6955), (3210, 6708), (3354, 6420), (3852, 5590), (3870, 5564), (4173, 5160), (4280, 5031), (4472, 4815), (4601, 4680)]