1540700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:123

約数の個数: 72

約数和(自身を含む): 3999744

約数和(自身を除く): 2459044

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 31, 35, 50, 62, 70, 71, 100, 124, 140, 142, 155, 175, 217, 284, 310, 350, 355, 434, 497, 620, 700, 710, 775, 868, 994, 1085, 1420, 1550, 1775, 1988, 2170, 2201, 2485, 3100, 3550, 4340, 4402, 4970, 5425, 7100, 8804, 9940, 10850, 11005, 12425, 15407, 21700, 22010, 24850, 30814, 44020, 49700, 55025, 61628, 77035, 110050, 154070, 220100, 308140, 385175, 770350, 1540700]

約数ペア:

[(1, 1540700), (2, 770350), (4, 385175), (5, 308140), (7, 220100), (10, 154070), (14, 110050), (20, 77035), (25, 61628), (28, 55025), (31, 49700), (35, 44020), (50, 30814), (62, 24850), (70, 22010), (71, 21700), (100, 15407), (124, 12425), (140, 11005), (142, 10850), (155, 9940), (175, 8804), (217, 7100), (284, 5425), (310, 4970), (350, 4402), (355, 4340), (434, 3550), (497, 3100), (620, 2485), (700, 2201), (710, 2170), (775, 1988), (868, 1775), (994, 1550), (1085, 1420)]