156817220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1571}}^1$

素因数の和:1641

約数の個数: 96

約数和(自身を含む): 405651456

約数和(自身を除く): 248834236

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 31, 35, 46, 62, 70, 92, 115, 124, 140, 155, 161, 217, 230, 310, 322, 434, 460, 620, 644, 713, 805, 868, 1085, 1426, 1571, 1610, 2170, 2852, 3142, 3220, 3565, 4340, 4991, 6284, 7130, 7855, 9982, 10997, 14260, 15710, 19964, 21994, 24955, 31420, 36133, 43988, 48701, 49910, 54985, 72266, 97402, 99820, 109970, 144532, 180665, 194804, 219940, 243505, 252931, 340907, 361330, 487010, 505862, 681814, 722660, 974020, 1011724, 1120123, 1264655, 1363628, 1704535, 2240246, 2529310, 3409070, 4480492, 5058620, 5600615, 6818140, 7840861, 11201230, 15681722, 22402460, 31363444, 39204305, 78408610, 156817220]

約数ペア:

[(1, 156817220), (2, 78408610), (4, 39204305), (5, 31363444), (7, 22402460), (10, 15681722), (14, 11201230), (20, 7840861), (23, 6818140), (28, 5600615), (31, 5058620), (35, 4480492), (46, 3409070), (62, 2529310), (70, 2240246), (92, 1704535), (115, 1363628), (124, 1264655), (140, 1120123), (155, 1011724), (161, 974020), (217, 722660), (230, 681814), (310, 505862), (322, 487010), (434, 361330), (460, 340907), (620, 252931), (644, 243505), (713, 219940), (805, 194804), (868, 180665), (1085, 144532), (1426, 109970), (1571, 99820), (1610, 97402), (2170, 72266), (2852, 54985), (3142, 49910), (3220, 48701), (3565, 43988), (4340, 36133), (4991, 31420), (6284, 24955), (7130, 21994), (7855, 19964), (9982, 15710), (10997, 14260)]