640998720

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1699}}^1$

素因数の和:1853

約数の個数: 168

約数和(自身を含む): 2222906400

約数和(自身を除く): 1581907680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 131, 144, 160, 180, 192, 240, 262, 288, 320, 360, 393, 480, 524, 576, 655, 720, 786, 960, 1048, 1179, 1310, 1440, 1572, 1699, 1965, 2096, 2358, 2620, 2880, 3144, 3398, 3930, 4192, 4716, 5097, 5240, 5895, 6288, 6796, 7860, 8384, 8495, 9432, 10194, 10480, 11790, 12576, 13592, 15291, 15720, 16990, 18864, 20388, 20960, 23580, 25152, 25485, 27184, 30582, 31440, 33980, 37728, 40776, 41920, 47160, 50970, 54368, 61164, 62880, 67960, 75456, 76455, 81552, 94320, 101940, 108736, 122328, 125760, 135920, 152910, 163104, 188640, 203880, 222569, 244656, 271840, 305820, 326208, 377280, 407760, 445138, 489312, 543680, 611640, 667707, 815520, 890276, 978624, 1112845, 1223280, 1335414, 1631040, 1780552, 2003121, 2225690, 2446560, 2670828, 3338535, 3561104, 4006242, 4451380, 4893120, 5341656, 6677070, 7122208, 8012484, 8902760, 10015605, 10683312, 13354140, 14244416, 16024968, 17805520, 20031210, 21366624, 26708280, 32049936, 35611040, 40062420, 42733248, 53416560, 64099872, 71222080, 80124840, 106833120, 128199744, 160249680, 213666240, 320499360, 640998720]

約数ペア:

[(1, 640998720), (2, 320499360), (3, 213666240), (4, 160249680), (5, 128199744), (6, 106833120), (8, 80124840), (9, 71222080), (10, 64099872), (12, 53416560), (15, 42733248), (16, 40062420), (18, 35611040), (20, 32049936), (24, 26708280), (30, 21366624), (32, 20031210), (36, 17805520), (40, 16024968), (45, 14244416), (48, 13354140), (60, 10683312), (64, 10015605), (72, 8902760), (80, 8012484), (90, 7122208), (96, 6677070), (120, 5341656), (131, 4893120), (144, 4451380), (160, 4006242), (180, 3561104), (192, 3338535), (240, 2670828), (262, 2446560), (288, 2225690), (320, 2003121), (360, 1780552), (393, 1631040), (480, 1335414), (524, 1223280), (576, 1112845), (655, 978624), (720, 890276), (786, 815520), (960, 667707), (1048, 611640), (1179, 543680), (1310, 489312), (1440, 445138), (1572, 407760), (1699, 377280), (1965, 326208), (2096, 305820), (2358, 271840), (2620, 244656), (2880, 222569), (3144, 203880), (3398, 188640), (3930, 163104), (4192, 152910), (4716, 135920), (5097, 125760), (5240, 122328), (5895, 108736), (6288, 101940), (6796, 94320), (7860, 81552), (8384, 76455), (8495, 75456), (9432, 67960), (10194, 62880), (10480, 61164), (11790, 54368), (12576, 50970), (13592, 47160), (15291, 41920), (15720, 40776), (16990, 37728), (18864, 33980), (20388, 31440), (20960, 30582), (23580, 27184), (25152, 25485)]