21080400

素因数分解:

$2^4\times 3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{1597}}^1$

素因数の和:1629

約数の個数: 120

約数和(自身を含む): 73712544

約数和(自身を除く): 52632144

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 25, 30, 33, 40, 44, 48, 50, 55, 60, 66, 75, 80, 88, 100, 110, 120, 132, 150, 165, 176, 200, 220, 240, 264, 275, 300, 330, 400, 440, 528, 550, 600, 660, 825, 880, 1100, 1200, 1320, 1597, 1650, 2200, 2640, 3194, 3300, 4400, 4791, 6388, 6600, 7985, 9582, 12776, 13200, 15970, 17567, 19164, 23955, 25552, 31940, 35134, 38328, 39925, 47910, 52701, 63880, 70268, 76656, 79850, 87835, 95820, 105402, 119775, 127760, 140536, 159700, 175670, 191640, 210804, 239550, 263505, 281072, 319400, 351340, 383280, 421608, 439175, 479100, 527010, 638800, 702680, 843216, 878350, 958200, 1054020, 1317525, 1405360, 1756700, 1916400, 2108040, 2635050, 3513400, 4216080, 5270100, 7026800, 10540200, 21080400]

約数ペア:

[(1, 21080400), (2, 10540200), (3, 7026800), (4, 5270100), (5, 4216080), (6, 3513400), (8, 2635050), (10, 2108040), (11, 1916400), (12, 1756700), (15, 1405360), (16, 1317525), (20, 1054020), (22, 958200), (24, 878350), (25, 843216), (30, 702680), (33, 638800), (40, 527010), (44, 479100), (48, 439175), (50, 421608), (55, 383280), (60, 351340), (66, 319400), (75, 281072), (80, 263505), (88, 239550), (100, 210804), (110, 191640), (120, 175670), (132, 159700), (150, 140536), (165, 127760), (176, 119775), (200, 105402), (220, 95820), (240, 87835), (264, 79850), (275, 76656), (300, 70268), (330, 63880), (400, 52701), (440, 47910), (528, 39925), (550, 38328), (600, 35134), (660, 31940), (825, 25552), (880, 23955), (1100, 19164), (1200, 17567), (1320, 15970), (1597, 13200), (1650, 12776), (2200, 9582), (2640, 7985), (3194, 6600), (3300, 6388), (4400, 4791)]