205825100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{641}}^1$

素因数の和:700

約数の個数: 108

約数和(自身を含む): 509889240

約数和(自身を除く): 304064140

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 25, 26, 38, 50, 52, 65, 76, 95, 100, 130, 169, 190, 247, 260, 325, 338, 380, 475, 494, 641, 650, 676, 845, 950, 988, 1235, 1282, 1300, 1690, 1900, 2470, 2564, 3205, 3211, 3380, 4225, 4940, 6175, 6410, 6422, 8333, 8450, 12179, 12350, 12820, 12844, 16025, 16055, 16666, 16900, 24358, 24700, 32050, 32110, 33332, 41665, 48716, 60895, 64100, 64220, 80275, 83330, 108329, 121790, 158327, 160550, 166660, 208325, 216658, 243580, 304475, 316654, 321100, 416650, 433316, 541645, 608950, 633308, 791635, 833300, 1083290, 1217900, 1583270, 2058251, 2166580, 2708225, 3166540, 3958175, 4116502, 5416450, 7916350, 8233004, 10291255, 10832900, 15832700, 20582510, 41165020, 51456275, 102912550, 205825100]

約数ペア:

[(1, 205825100), (2, 102912550), (4, 51456275), (5, 41165020), (10, 20582510), (13, 15832700), (19, 10832900), (20, 10291255), (25, 8233004), (26, 7916350), (38, 5416450), (50, 4116502), (52, 3958175), (65, 3166540), (76, 2708225), (95, 2166580), (100, 2058251), (130, 1583270), (169, 1217900), (190, 1083290), (247, 833300), (260, 791635), (325, 633308), (338, 608950), (380, 541645), (475, 433316), (494, 416650), (641, 321100), (650, 316654), (676, 304475), (845, 243580), (950, 216658), (988, 208325), (1235, 166660), (1282, 160550), (1300, 158327), (1690, 121790), (1900, 108329), (2470, 83330), (2564, 80275), (3205, 64220), (3211, 64100), (3380, 60895), (4225, 48716), (4940, 41665), (6175, 33332), (6410, 32110), (6422, 32050), (8333, 24700), (8450, 24358), (12179, 16900), (12350, 16666), (12820, 16055), (12844, 16025)]