665950180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{563}}^1$

素因数の和:674

約数の個数: 144

約数和(自身を含む): 1749879936

約数和(自身を除く): 1083929756

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 49, 68, 70, 71, 85, 98, 119, 140, 142, 170, 196, 238, 245, 284, 340, 355, 476, 490, 497, 563, 595, 710, 833, 980, 994, 1126, 1190, 1207, 1420, 1666, 1988, 2252, 2380, 2414, 2485, 2815, 3332, 3479, 3941, 4165, 4828, 4970, 5630, 6035, 6958, 7882, 8330, 8449, 9571, 9940, 11260, 12070, 13916, 15764, 16660, 16898, 17395, 19142, 19705, 24140, 27587, 33796, 34790, 38284, 39410, 39973, 42245, 47855, 55174, 59143, 66997, 69580, 78820, 79946, 84490, 95710, 110348, 118286, 133994, 137935, 159892, 168980, 191420, 199865, 236572, 267988, 275870, 279811, 295715, 334985, 399730, 468979, 551740, 559622, 591430, 669970, 679541, 799460, 937958, 1119244, 1182860, 1339940, 1359082, 1399055, 1875916, 1958677, 2344895, 2718164, 2798110, 3397705, 3917354, 4689790, 4756787, 5596220, 6795410, 7834708, 9379580, 9513574, 9793385, 13590820, 19027148, 19586770, 23783935, 33297509, 39173540, 47567870, 66595018, 95135740, 133190036, 166487545, 332975090, 665950180]

約数ペア:

[(1, 665950180), (2, 332975090), (4, 166487545), (5, 133190036), (7, 95135740), (10, 66595018), (14, 47567870), (17, 39173540), (20, 33297509), (28, 23783935), (34, 19586770), (35, 19027148), (49, 13590820), (68, 9793385), (70, 9513574), (71, 9379580), (85, 7834708), (98, 6795410), (119, 5596220), (140, 4756787), (142, 4689790), (170, 3917354), (196, 3397705), (238, 2798110), (245, 2718164), (284, 2344895), (340, 1958677), (355, 1875916), (476, 1399055), (490, 1359082), (497, 1339940), (563, 1182860), (595, 1119244), (710, 937958), (833, 799460), (980, 679541), (994, 669970), (1126, 591430), (1190, 559622), (1207, 551740), (1420, 468979), (1666, 399730), (1988, 334985), (2252, 295715), (2380, 279811), (2414, 275870), (2485, 267988), (2815, 236572), (3332, 199865), (3479, 191420), (3941, 168980), (4165, 159892), (4828, 137935), (4970, 133994), (5630, 118286), (6035, 110348), (6958, 95710), (7882, 84490), (8330, 79946), (8449, 78820), (9571, 69580), (9940, 66997), (11260, 59143), (12070, 55174), (13916, 47855), (15764, 42245), (16660, 39973), (16898, 39410), (17395, 38284), (19142, 34790), (19705, 33796), (24140, 27587)]