64980620

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{683}}^1$

素因数の和:830

約数の個数: 48

約数和(自身を含む): 140652288

約数和(自身を除く): 75671668

約数列:

[1, 2, 4, 5, 10, 20, 67, 71, 134, 142, 268, 284, 335, 355, 670, 683, 710, 1340, 1366, 1420, 2732, 3415, 4757, 6830, 9514, 13660, 19028, 23785, 45761, 47570, 48493, 91522, 95140, 96986, 183044, 193972, 228805, 242465, 457610, 484930, 915220, 969860, 3249031, 6498062, 12996124, 16245155, 32490310, 64980620]

約数ペア:

[(1, 64980620), (2, 32490310), (4, 16245155), (5, 12996124), (10, 6498062), (20, 3249031), (67, 969860), (71, 915220), (134, 484930), (142, 457610), (268, 242465), (284, 228805), (335, 193972), (355, 183044), (670, 96986), (683, 95140), (710, 91522), (1340, 48493), (1366, 47570), (1420, 45761), (2732, 23785), (3415, 19028), (4757, 13660), (6830, 9514)]