20179852820

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{251}}^1\times {\mathrm{1039}}^1$

素因数の和:1425

約数の個数: 96

約数和(自身を含む): 43985410560

約数和(自身を除く): 23805557740

約数列:

[1, 2, 4, 5, 10, 20, 53, 73, 106, 146, 212, 251, 265, 292, 365, 502, 530, 730, 1004, 1039, 1060, 1255, 1460, 2078, 2510, 3869, 4156, 5020, 5195, 7738, 10390, 13303, 15476, 18323, 19345, 20780, 26606, 36646, 38690, 53212, 55067, 66515, 73292, 75847, 77380, 91615, 110134, 133030, 151694, 183230, 220268, 260789, 266060, 275335, 303388, 366460, 379235, 521578, 550670, 758470, 971119, 1043156, 1101340, 1303945, 1516940, 1942238, 2607890, 3884476, 4019891, 4855595, 5215780, 8039782, 9711190, 13821817, 16079564, 19037597, 19422380, 20099455, 27643634, 38075194, 40198910, 55287268, 69109085, 76150388, 80397820, 95187985, 138218170, 190375970, 276436340, 380751940, 1008992641, 2017985282, 4035970564, 5044963205, 10089926410, 20179852820]

約数ペア:

[(1, 20179852820), (2, 10089926410), (4, 5044963205), (5, 4035970564), (10, 2017985282), (20, 1008992641), (53, 380751940), (73, 276436340), (106, 190375970), (146, 138218170), (212, 95187985), (251, 80397820), (265, 76150388), (292, 69109085), (365, 55287268), (502, 40198910), (530, 38075194), (730, 27643634), (1004, 20099455), (1039, 19422380), (1060, 19037597), (1255, 16079564), (1460, 13821817), (2078, 9711190), (2510, 8039782), (3869, 5215780), (4156, 4855595), (5020, 4019891), (5195, 3884476), (7738, 2607890), (10390, 1942238), (13303, 1516940), (15476, 1303945), (18323, 1101340), (19345, 1043156), (20780, 971119), (26606, 758470), (36646, 550670), (38690, 521578), (53212, 379235), (55067, 366460), (66515, 303388), (73292, 275335), (75847, 266060), (77380, 260789), (91615, 220268), (110134, 183230), (133030, 151694)]