313531520

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{15803}}^1$

素因数の和:15853

約数の個数: 64

約数和(自身を含む): 773763840

約数和(自身を除く): 460232320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1984, 2480, 3968, 4960, 9920, 15803, 19840, 31606, 63212, 79015, 126424, 158030, 252848, 316060, 489893, 505696, 632120, 979786, 1011392, 1264240, 1959572, 2022784, 2449465, 2528480, 3919144, 4898930, 5056960, 7838288, 9797860, 10113920, 15676576, 19595720, 31353152, 39191440, 62706304, 78382880, 156765760, 313531520]

約数ペア:

[(1, 313531520), (2, 156765760), (4, 78382880), (5, 62706304), (8, 39191440), (10, 31353152), (16, 19595720), (20, 15676576), (31, 10113920), (32, 9797860), (40, 7838288), (62, 5056960), (64, 4898930), (80, 3919144), (124, 2528480), (128, 2449465), (155, 2022784), (160, 1959572), (248, 1264240), (310, 1011392), (320, 979786), (496, 632120), (620, 505696), (640, 489893), (992, 316060), (1240, 252848), (1984, 158030), (2480, 126424), (3968, 79015), (4960, 63212), (9920, 31606), (15803, 19840)]