203416420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{4621}}^1$

素因数の和:4732

約数の個数: 48

約数和(自身を含む): 447261696

約数和(自身を除く): 243845276

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 71, 124, 142, 155, 284, 310, 355, 620, 710, 1420, 2201, 4402, 4621, 8804, 9242, 11005, 18484, 22010, 23105, 44020, 46210, 92420, 143251, 286502, 328091, 573004, 656182, 716255, 1312364, 1432510, 1640455, 2865020, 3280910, 6561820, 10170821, 20341642, 40683284, 50854105, 101708210, 203416420]

約数ペア:

[(1, 203416420), (2, 101708210), (4, 50854105), (5, 40683284), (10, 20341642), (20, 10170821), (31, 6561820), (62, 3280910), (71, 2865020), (124, 1640455), (142, 1432510), (155, 1312364), (284, 716255), (310, 656182), (355, 573004), (620, 328091), (710, 286502), (1420, 143251), (2201, 92420), (4402, 46210), (4621, 44020), (8804, 23105), (9242, 22010), (11005, 18484)]