257979780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{6427}}^1$

素因数の和:6665

約数の個数: 72

約数和(自身を含む): 786170112

約数和(自身を除く): 528190332

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 223, 446, 669, 892, 1115, 1338, 2007, 2230, 2676, 3345, 4014, 4460, 6427, 6690, 8028, 10035, 12854, 13380, 19281, 20070, 25708, 32135, 38562, 40140, 57843, 64270, 77124, 96405, 115686, 128540, 192810, 231372, 289215, 385620, 578430, 1156860, 1433221, 2866442, 4299663, 5732884, 7166105, 8599326, 12898989, 14332210, 17198652, 21498315, 25797978, 28664420, 42996630, 51595956, 64494945, 85993260, 128989890, 257979780]

約数ペア:

[(1, 257979780), (2, 128989890), (3, 85993260), (4, 64494945), (5, 51595956), (6, 42996630), (9, 28664420), (10, 25797978), (12, 21498315), (15, 17198652), (18, 14332210), (20, 12898989), (30, 8599326), (36, 7166105), (45, 5732884), (60, 4299663), (90, 2866442), (180, 1433221), (223, 1156860), (446, 578430), (669, 385620), (892, 289215), (1115, 231372), (1338, 192810), (2007, 128540), (2230, 115686), (2676, 96405), (3345, 77124), (4014, 64270), (4460, 57843), (6427, 40140), (6690, 38562), (8028, 32135), (10035, 25708), (12854, 20070), (13380, 19281)]