2155160980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1\times {\mathrm{1381}}^1$

素因数の和:1625

約数の個数: 96

約数和(自身を含む): 5282468352

約数和(自身を除く): 3127307372

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 157, 284, 314, 355, 497, 628, 710, 785, 994, 1099, 1381, 1420, 1570, 1988, 2198, 2485, 2762, 3140, 4396, 4970, 5495, 5524, 6905, 9667, 9940, 10990, 11147, 13810, 19334, 21980, 22294, 27620, 38668, 44588, 48335, 55735, 78029, 96670, 98051, 111470, 156058, 193340, 196102, 216817, 222940, 312116, 390145, 392204, 433634, 490255, 686357, 780290, 867268, 980510, 1084085, 1372714, 1517719, 1560580, 1961020, 2168170, 2745428, 3035438, 3431785, 4336340, 6070876, 6863570, 7588595, 13727140, 15177190, 15394007, 30354380, 30788014, 61576028, 76970035, 107758049, 153940070, 215516098, 307880140, 431032196, 538790245, 1077580490, 2155160980]

約数ペア:

[(1, 2155160980), (2, 1077580490), (4, 538790245), (5, 431032196), (7, 307880140), (10, 215516098), (14, 153940070), (20, 107758049), (28, 76970035), (35, 61576028), (70, 30788014), (71, 30354380), (140, 15394007), (142, 15177190), (157, 13727140), (284, 7588595), (314, 6863570), (355, 6070876), (497, 4336340), (628, 3431785), (710, 3035438), (785, 2745428), (994, 2168170), (1099, 1961020), (1381, 1560580), (1420, 1517719), (1570, 1372714), (1988, 1084085), (2198, 980510), (2485, 867268), (2762, 780290), (3140, 686357), (4396, 490255), (4970, 433634), (5495, 392204), (5524, 390145), (6905, 312116), (9667, 222940), (9940, 216817), (10990, 196102), (11147, 193340), (13810, 156058), (19334, 111470), (21980, 98051), (22294, 96670), (27620, 78029), (38668, 55735), (44588, 48335)]