201996680

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1\times {\mathrm{659}}^1$

素因数の和:846

約数の個数: 64

約数和(自身を含む): 465696000

約数和(自身を除く): 263699320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 97, 158, 194, 316, 388, 395, 485, 632, 659, 776, 790, 970, 1318, 1580, 1940, 2636, 3160, 3295, 3880, 5272, 6590, 7663, 13180, 15326, 26360, 30652, 38315, 52061, 61304, 63923, 76630, 104122, 127846, 153260, 208244, 255692, 260305, 306520, 319615, 416488, 511384, 520610, 639230, 1041220, 1278460, 2082440, 2556920, 5049917, 10099834, 20199668, 25249585, 40399336, 50499170, 100998340, 201996680]

約数ペア:

[(1, 201996680), (2, 100998340), (4, 50499170), (5, 40399336), (8, 25249585), (10, 20199668), (20, 10099834), (40, 5049917), (79, 2556920), (97, 2082440), (158, 1278460), (194, 1041220), (316, 639230), (388, 520610), (395, 511384), (485, 416488), (632, 319615), (659, 306520), (776, 260305), (790, 255692), (970, 208244), (1318, 153260), (1580, 127846), (1940, 104122), (2636, 76630), (3160, 63923), (3295, 61304), (3880, 52061), (5272, 38315), (6590, 30652), (7663, 26360), (13180, 15326)]