1990874560

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{2069}}^1$

素因数の和:2214

約数の個数: 112

約数和(自身を含む): 4946538240

約数和(自身を除く): 2955663680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 97, 124, 155, 160, 194, 248, 310, 320, 388, 485, 496, 620, 776, 970, 992, 1240, 1552, 1940, 1984, 2069, 2480, 3007, 3104, 3880, 4138, 4960, 6014, 6208, 7760, 8276, 9920, 10345, 12028, 15035, 15520, 16552, 20690, 24056, 30070, 31040, 33104, 41380, 48112, 60140, 64139, 66208, 82760, 96224, 120280, 128278, 132416, 165520, 192448, 200693, 240560, 256556, 320695, 331040, 401386, 481120, 513112, 641390, 662080, 802772, 962240, 1003465, 1026224, 1282780, 1605544, 2006930, 2052448, 2565560, 3211088, 4013860, 4104896, 5131120, 6221483, 6422176, 8027720, 10262240, 12442966, 12844352, 16055440, 20524480, 24885932, 31107415, 32110880, 49771864, 62214830, 64221760, 99543728, 124429660, 199087456, 248859320, 398174912, 497718640, 995437280, 1990874560]

約数ペア:

[(1, 1990874560), (2, 995437280), (4, 497718640), (5, 398174912), (8, 248859320), (10, 199087456), (16, 124429660), (20, 99543728), (31, 64221760), (32, 62214830), (40, 49771864), (62, 32110880), (64, 31107415), (80, 24885932), (97, 20524480), (124, 16055440), (155, 12844352), (160, 12442966), (194, 10262240), (248, 8027720), (310, 6422176), (320, 6221483), (388, 5131120), (485, 4104896), (496, 4013860), (620, 3211088), (776, 2565560), (970, 2052448), (992, 2006930), (1240, 1605544), (1552, 1282780), (1940, 1026224), (1984, 1003465), (2069, 962240), (2480, 802772), (3007, 662080), (3104, 641390), (3880, 513112), (4138, 481120), (4960, 401386), (6014, 331040), (6208, 320695), (7760, 256556), (8276, 240560), (9920, 200693), (10345, 192448), (12028, 165520), (15035, 132416), (15520, 128278), (16552, 120280), (20690, 96224), (24056, 82760), (30070, 66208), (31040, 64139), (33104, 60140), (41380, 48112)]