407605120

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{48991}}^1$

素因数の和:49023

約数の個数: 64

約数和(自身を含む): 1049408640

約数和(自身を除く): 641803520

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 260, 320, 416, 520, 640, 832, 1040, 1664, 2080, 4160, 8320, 48991, 97982, 195964, 244955, 391928, 489910, 636883, 783856, 979820, 1273766, 1567712, 1959640, 2547532, 3135424, 3184415, 3919280, 5095064, 6270848, 6368830, 7838560, 10190128, 12737660, 15677120, 20380256, 25475320, 31354240, 40760512, 50950640, 81521024, 101901280, 203802560, 407605120]

約数ペア:

[(1, 407605120), (2, 203802560), (4, 101901280), (5, 81521024), (8, 50950640), (10, 40760512), (13, 31354240), (16, 25475320), (20, 20380256), (26, 15677120), (32, 12737660), (40, 10190128), (52, 7838560), (64, 6368830), (65, 6270848), (80, 5095064), (104, 3919280), (128, 3184415), (130, 3135424), (160, 2547532), (208, 1959640), (260, 1567712), (320, 1273766), (416, 979820), (520, 783856), (640, 636883), (832, 489910), (1040, 391928), (1664, 244955), (2080, 195964), (4160, 97982), (8320, 48991)]