1991289888

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{677}}^1\times {\mathrm{1459}}^1$

素因数の和:2159

約数の個数: 144

約数和(自身を含む): 6485693760

約数和(自身を除く): 4494403872

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 48, 56, 63, 72, 84, 96, 112, 126, 144, 168, 224, 252, 288, 336, 504, 672, 677, 1008, 1354, 1459, 2016, 2031, 2708, 2918, 4062, 4377, 4739, 5416, 5836, 6093, 8124, 8754, 9478, 10213, 10832, 11672, 12186, 13131, 14217, 16248, 17508, 18956, 20426, 21664, 23344, 24372, 26262, 28434, 30639, 32496, 35016, 37912, 40852, 42651, 46688, 48744, 52524, 56868, 61278, 64992, 70032, 75824, 81704, 85302, 91917, 97488, 105048, 113736, 122556, 140064, 151648, 163408, 170604, 183834, 194976, 210096, 227472, 245112, 326816, 341208, 367668, 420192, 454944, 490224, 682416, 735336, 980448, 987743, 1364832, 1470672, 1975486, 2941344, 2963229, 3950972, 5926458, 6914201, 7901944, 8889687, 11852916, 13828402, 15803888, 17779374, 20742603, 23705832, 27656804, 31607776, 35558748, 41485206, 47411664, 55313608, 62227809, 71117496, 82970412, 94823328, 110627216, 124455618, 142234992, 165940824, 221254432, 248911236, 284469984, 331881648, 497822472, 663763296, 995644944, 1991289888]

約数ペア:

[(1, 1991289888), (2, 995644944), (3, 663763296), (4, 497822472), (6, 331881648), (7, 284469984), (8, 248911236), (9, 221254432), (12, 165940824), (14, 142234992), (16, 124455618), (18, 110627216), (21, 94823328), (24, 82970412), (28, 71117496), (32, 62227809), (36, 55313608), (42, 47411664), (48, 41485206), (56, 35558748), (63, 31607776), (72, 27656804), (84, 23705832), (96, 20742603), (112, 17779374), (126, 15803888), (144, 13828402), (168, 11852916), (224, 8889687), (252, 7901944), (288, 6914201), (336, 5926458), (504, 3950972), (672, 2963229), (677, 2941344), (1008, 1975486), (1354, 1470672), (1459, 1364832), (2016, 987743), (2031, 980448), (2708, 735336), (2918, 682416), (4062, 490224), (4377, 454944), (4739, 420192), (5416, 367668), (5836, 341208), (6093, 326816), (8124, 245112), (8754, 227472), (9478, 210096), (10213, 194976), (10832, 183834), (11672, 170604), (12186, 163408), (13131, 151648), (14217, 140064), (16248, 122556), (17508, 113736), (18956, 105048), (20426, 97488), (21664, 91917), (23344, 85302), (24372, 81704), (26262, 75824), (28434, 70032), (30639, 64992), (32496, 61278), (35016, 56868), (37912, 52524), (40852, 48744), (42651, 46688)]