656135740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{601}}^1$

素因数の和:672

約数の個数: 144

約数和(自身を含む): 1665709920

約数和(自身を除く): 1009574180

約数列:

[1, 2, 4, 5, 10, 13, 17, 19, 20, 26, 34, 38, 52, 65, 68, 76, 85, 95, 130, 169, 170, 190, 221, 247, 260, 323, 338, 340, 380, 442, 494, 601, 646, 676, 845, 884, 988, 1105, 1202, 1235, 1292, 1615, 1690, 2210, 2404, 2470, 2873, 3005, 3211, 3230, 3380, 4199, 4420, 4940, 5746, 6010, 6422, 6460, 7813, 8398, 10217, 11419, 11492, 12020, 12844, 14365, 15626, 16055, 16796, 20434, 20995, 22838, 28730, 31252, 32110, 39065, 40868, 41990, 45676, 51085, 54587, 57095, 57460, 64220, 78130, 83980, 101569, 102170, 109174, 114190, 132821, 148447, 156260, 194123, 203138, 204340, 218348, 228380, 265642, 272935, 296894, 388246, 406276, 507845, 531284, 545870, 593788, 664105, 742235, 776492, 970615, 1015690, 1091740, 1328210, 1484470, 1726673, 1929811, 1941230, 2031380, 2523599, 2656420, 2968940, 3453346, 3859622, 3882460, 5047198, 6906692, 7719244, 8633365, 9649055, 10094396, 12617995, 17266730, 19298110, 25235990, 32806787, 34533460, 38596220, 50471980, 65613574, 131227148, 164033935, 328067870, 656135740]

約数ペア:

[(1, 656135740), (2, 328067870), (4, 164033935), (5, 131227148), (10, 65613574), (13, 50471980), (17, 38596220), (19, 34533460), (20, 32806787), (26, 25235990), (34, 19298110), (38, 17266730), (52, 12617995), (65, 10094396), (68, 9649055), (76, 8633365), (85, 7719244), (95, 6906692), (130, 5047198), (169, 3882460), (170, 3859622), (190, 3453346), (221, 2968940), (247, 2656420), (260, 2523599), (323, 2031380), (338, 1941230), (340, 1929811), (380, 1726673), (442, 1484470), (494, 1328210), (601, 1091740), (646, 1015690), (676, 970615), (845, 776492), (884, 742235), (988, 664105), (1105, 593788), (1202, 545870), (1235, 531284), (1292, 507845), (1615, 406276), (1690, 388246), (2210, 296894), (2404, 272935), (2470, 265642), (2873, 228380), (3005, 218348), (3211, 204340), (3230, 203138), (3380, 194123), (4199, 156260), (4420, 148447), (4940, 132821), (5746, 114190), (6010, 109174), (6422, 102170), (6460, 101569), (7813, 83980), (8398, 78130), (10217, 64220), (11419, 57460), (11492, 57095), (12020, 54587), (12844, 51085), (14365, 45676), (15626, 41990), (16055, 40868), (16796, 39065), (20434, 32110), (20995, 31252), (22838, 28730)]