1561963520

素因数分解:

$2^{10}\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{757}}^1$

素因数の和:826

約数の個数: 176

約数和(自身を含む): 4170770688

約数和(自身を除く): 2608807168

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 128, 130, 155, 160, 208, 248, 256, 260, 310, 320, 403, 416, 496, 512, 520, 620, 640, 757, 806, 832, 992, 1024, 1040, 1240, 1280, 1514, 1612, 1664, 1984, 2015, 2080, 2480, 2560, 3028, 3224, 3328, 3785, 3968, 4030, 4160, 4960, 5120, 6056, 6448, 6656, 7570, 7936, 8060, 8320, 9841, 9920, 12112, 12896, 13312, 15140, 15872, 16120, 16640, 19682, 19840, 23467, 24224, 25792, 30280, 31744, 32240, 33280, 39364, 39680, 46934, 48448, 49205, 51584, 60560, 64480, 66560, 78728, 79360, 93868, 96896, 98410, 103168, 117335, 121120, 128960, 157456, 158720, 187736, 193792, 196820, 206336, 234670, 242240, 257920, 305071, 314912, 375472, 387584, 393640, 412672, 469340, 484480, 515840, 610142, 629824, 750944, 775168, 787280, 938680, 968960, 1031680, 1220284, 1259648, 1501888, 1525355, 1574560, 1877360, 1937920, 2063360, 2440568, 2519296, 3003776, 3050710, 3149120, 3754720, 3875840, 4881136, 5038592, 6007552, 6101420, 6298240, 7509440, 9762272, 10077184, 12015104, 12202840, 12596480, 15018880, 19524544, 24030208, 24405680, 25192960, 30037760, 39049088, 48811360, 50385920, 60075520, 78098176, 97622720, 120151040, 156196352, 195245440, 312392704, 390490880, 780981760, 1561963520]

約数ペア:

[(1, 1561963520), (2, 780981760), (4, 390490880), (5, 312392704), (8, 195245440), (10, 156196352), (13, 120151040), (16, 97622720), (20, 78098176), (26, 60075520), (31, 50385920), (32, 48811360), (40, 39049088), (52, 30037760), (62, 25192960), (64, 24405680), (65, 24030208), (80, 19524544), (104, 15018880), (124, 12596480), (128, 12202840), (130, 12015104), (155, 10077184), (160, 9762272), (208, 7509440), (248, 6298240), (256, 6101420), (260, 6007552), (310, 5038592), (320, 4881136), (403, 3875840), (416, 3754720), (496, 3149120), (512, 3050710), (520, 3003776), (620, 2519296), (640, 2440568), (757, 2063360), (806, 1937920), (832, 1877360), (992, 1574560), (1024, 1525355), (1040, 1501888), (1240, 1259648), (1280, 1220284), (1514, 1031680), (1612, 968960), (1664, 938680), (1984, 787280), (2015, 775168), (2080, 750944), (2480, 629824), (2560, 610142), (3028, 515840), (3224, 484480), (3328, 469340), (3785, 412672), (3968, 393640), (4030, 387584), (4160, 375472), (4960, 314912), (5120, 305071), (6056, 257920), (6448, 242240), (6656, 234670), (7570, 206336), (7936, 196820), (8060, 193792), (8320, 187736), (9841, 158720), (9920, 157456), (12112, 128960), (12896, 121120), (13312, 117335), (15140, 103168), (15872, 98410), (16120, 96896), (16640, 93868), (19682, 79360), (19840, 78728), (23467, 66560), (24224, 64480), (25792, 60560), (30280, 51584), (31744, 49205), (32240, 48448), (33280, 46934), (39364, 39680)]