1900549550

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{20101}}^1$

素因数の和:20205

約数の個数: 48

約数和(自身を含む): 3709060224

約数和(自身を除く): 1808510674

約数列:

[1, 2, 5, 10, 25, 31, 50, 61, 62, 122, 155, 305, 310, 610, 775, 1525, 1550, 1891, 3050, 3782, 9455, 18910, 20101, 40202, 47275, 94550, 100505, 201010, 502525, 623131, 1005050, 1226161, 1246262, 2452322, 3115655, 6130805, 6231310, 12261610, 15578275, 30654025, 31156550, 38010991, 61308050, 76021982, 190054955, 380109910, 950274775, 1900549550]

約数ペア:

[(1, 1900549550), (2, 950274775), (5, 380109910), (10, 190054955), (25, 76021982), (31, 61308050), (50, 38010991), (61, 31156550), (62, 30654025), (122, 15578275), (155, 12261610), (305, 6231310), (310, 6130805), (610, 3115655), (775, 2452322), (1525, 1246262), (1550, 1226161), (1891, 1005050), (3050, 623131), (3782, 502525), (9455, 201010), (18910, 100505), (20101, 94550), (40202, 47275)]