400986240

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{6737}}^1$

素因数の和:6790

約数の個数: 128

約数和(自身を含む): 1319569920

約数和(自身を除く): 918583680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 60, 62, 64, 80, 93, 96, 120, 124, 128, 155, 160, 186, 192, 240, 248, 310, 320, 372, 384, 465, 480, 496, 620, 640, 744, 930, 960, 992, 1240, 1488, 1860, 1920, 1984, 2480, 2976, 3720, 3968, 4960, 5952, 6737, 7440, 9920, 11904, 13474, 14880, 19840, 20211, 26948, 29760, 33685, 40422, 53896, 59520, 67370, 80844, 101055, 107792, 134740, 161688, 202110, 208847, 215584, 269480, 323376, 404220, 417694, 431168, 538960, 626541, 646752, 808440, 835388, 862336, 1044235, 1077920, 1253082, 1293504, 1616880, 1670776, 2088470, 2155840, 2506164, 2587008, 3132705, 3233760, 3341552, 4176940, 4311680, 5012328, 6265410, 6467520, 6683104, 8353880, 10024656, 12530820, 12935040, 13366208, 16707760, 20049312, 25061640, 26732416, 33415520, 40098624, 50123280, 66831040, 80197248, 100246560, 133662080, 200493120, 400986240]

約数ペア:

[(1, 400986240), (2, 200493120), (3, 133662080), (4, 100246560), (5, 80197248), (6, 66831040), (8, 50123280), (10, 40098624), (12, 33415520), (15, 26732416), (16, 25061640), (20, 20049312), (24, 16707760), (30, 13366208), (31, 12935040), (32, 12530820), (40, 10024656), (48, 8353880), (60, 6683104), (62, 6467520), (64, 6265410), (80, 5012328), (93, 4311680), (96, 4176940), (120, 3341552), (124, 3233760), (128, 3132705), (155, 2587008), (160, 2506164), (186, 2155840), (192, 2088470), (240, 1670776), (248, 1616880), (310, 1293504), (320, 1253082), (372, 1077920), (384, 1044235), (465, 862336), (480, 835388), (496, 808440), (620, 646752), (640, 626541), (744, 538960), (930, 431168), (960, 417694), (992, 404220), (1240, 323376), (1488, 269480), (1860, 215584), (1920, 208847), (1984, 202110), (2480, 161688), (2976, 134740), (3720, 107792), (3968, 101055), (4960, 80844), (5952, 67370), (6737, 59520), (7440, 53896), (9920, 40422), (11904, 33685), (13474, 29760), (14880, 26948), (19840, 20211)]