40807780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1$

素因数の和:197

約数の個数: 96

約数和(自身を含む): 97993728

約数和(自身を除く): 57185948

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 61, 62, 65, 83, 122, 124, 130, 155, 166, 244, 260, 305, 310, 332, 403, 415, 610, 620, 793, 806, 830, 1079, 1220, 1586, 1612, 1660, 1891, 2015, 2158, 2573, 3172, 3782, 3965, 4030, 4316, 5063, 5146, 5395, 7564, 7930, 8060, 9455, 10126, 10292, 10790, 12865, 15860, 18910, 20252, 21580, 24583, 25315, 25730, 33449, 37820, 49166, 50630, 51460, 65819, 66898, 98332, 101260, 122915, 131638, 133796, 156953, 167245, 245830, 263276, 313906, 329095, 334490, 491660, 627812, 658190, 668980, 784765, 1316380, 1569530, 2040389, 3139060, 4080778, 8161556, 10201945, 20403890, 40807780]

約数ペア:

[(1, 40807780), (2, 20403890), (4, 10201945), (5, 8161556), (10, 4080778), (13, 3139060), (20, 2040389), (26, 1569530), (31, 1316380), (52, 784765), (61, 668980), (62, 658190), (65, 627812), (83, 491660), (122, 334490), (124, 329095), (130, 313906), (155, 263276), (166, 245830), (244, 167245), (260, 156953), (305, 133796), (310, 131638), (332, 122915), (403, 101260), (415, 98332), (610, 66898), (620, 65819), (793, 51460), (806, 50630), (830, 49166), (1079, 37820), (1220, 33449), (1586, 25730), (1612, 25315), (1660, 24583), (1891, 21580), (2015, 20252), (2158, 18910), (2573, 15860), (3172, 12865), (3782, 10790), (3965, 10292), (4030, 10126), (4316, 9455), (5063, 8060), (5146, 7930), (5395, 7564)]