25990783780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{248051}}^1$

素因数の和:248117

約数の個数: 72

約数和(自身を含む): 61008885504

約数和(自身を除く): 35018101724

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 169, 260, 310, 338, 403, 620, 676, 806, 845, 1612, 1690, 2015, 3380, 4030, 5239, 8060, 10478, 20956, 26195, 52390, 104780, 248051, 496102, 992204, 1240255, 2480510, 3224663, 4961020, 6449326, 7689581, 12898652, 15379162, 16123315, 30758324, 32246630, 38447905, 41920619, 64493260, 76895810, 83841238, 99964553, 153791620, 167682476, 199929106, 209603095, 399858212, 419206190, 499822765, 838412380, 999645530, 1299539189, 1999291060, 2599078378, 5198156756, 6497695945, 12995391890, 25990783780]

約数ペア:

[(1, 25990783780), (2, 12995391890), (4, 6497695945), (5, 5198156756), (10, 2599078378), (13, 1999291060), (20, 1299539189), (26, 999645530), (31, 838412380), (52, 499822765), (62, 419206190), (65, 399858212), (124, 209603095), (130, 199929106), (155, 167682476), (169, 153791620), (260, 99964553), (310, 83841238), (338, 76895810), (403, 64493260), (620, 41920619), (676, 38447905), (806, 32246630), (845, 30758324), (1612, 16123315), (1690, 15379162), (2015, 12898652), (3380, 7689581), (4030, 6449326), (5239, 4961020), (8060, 3224663), (10478, 2480510), (20956, 1240255), (26195, 992204), (52390, 496102), (104780, 248051)]