219749880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{1997}}^1$

素因数の和:2149

約数の個数: 128

約数和(自身を含む): 759559680

約数和(自身を除く): 539809800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 131, 140, 168, 210, 262, 280, 393, 420, 524, 655, 786, 840, 917, 1048, 1310, 1572, 1834, 1965, 1997, 2620, 2751, 3144, 3668, 3930, 3994, 4585, 5240, 5502, 5991, 7336, 7860, 7988, 9170, 9985, 11004, 11982, 13755, 13979, 15720, 15976, 18340, 19970, 22008, 23964, 27510, 27958, 29955, 36680, 39940, 41937, 47928, 55020, 55916, 59910, 69895, 79880, 83874, 110040, 111832, 119820, 139790, 167748, 209685, 239640, 261607, 279580, 335496, 419370, 523214, 559160, 784821, 838740, 1046428, 1308035, 1569642, 1677480, 1831249, 2092856, 2616070, 3139284, 3662498, 3924105, 5232140, 5493747, 6278568, 7324996, 7848210, 9156245, 10464280, 10987494, 14649992, 15696420, 18312490, 21974988, 27468735, 31392840, 36624980, 43949976, 54937470, 73249960, 109874940, 219749880]

約数ペア:

[(1, 219749880), (2, 109874940), (3, 73249960), (4, 54937470), (5, 43949976), (6, 36624980), (7, 31392840), (8, 27468735), (10, 21974988), (12, 18312490), (14, 15696420), (15, 14649992), (20, 10987494), (21, 10464280), (24, 9156245), (28, 7848210), (30, 7324996), (35, 6278568), (40, 5493747), (42, 5232140), (56, 3924105), (60, 3662498), (70, 3139284), (84, 2616070), (105, 2092856), (120, 1831249), (131, 1677480), (140, 1569642), (168, 1308035), (210, 1046428), (262, 838740), (280, 784821), (393, 559160), (420, 523214), (524, 419370), (655, 335496), (786, 279580), (840, 261607), (917, 239640), (1048, 209685), (1310, 167748), (1572, 139790), (1834, 119820), (1965, 111832), (1997, 110040), (2620, 83874), (2751, 79880), (3144, 69895), (3668, 59910), (3930, 55916), (3994, 55020), (4585, 47928), (5240, 41937), (5502, 39940), (5991, 36680), (7336, 29955), (7860, 27958), (7988, 27510), (9170, 23964), (9985, 22008), (11004, 19970), (11982, 18340), (13755, 15976), (13979, 15720)]