1643289980

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{401}}^1\times {\mathrm{3359}}^1$

素因数の和:3830

約数の個数: 48

約数和(自身を含む): 3517274880

約数和(自身を除く): 1873984900

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 401, 610, 802, 1220, 1604, 2005, 3359, 4010, 6718, 8020, 13436, 16795, 24461, 33590, 48922, 67180, 97844, 122305, 204899, 244610, 409798, 489220, 819596, 1024495, 1346959, 2048990, 2693918, 4097980, 5387836, 6734795, 13469590, 26939180, 82164499, 164328998, 328657996, 410822495, 821644990, 1643289980]

約数ペア:

[(1, 1643289980), (2, 821644990), (4, 410822495), (5, 328657996), (10, 164328998), (20, 82164499), (61, 26939180), (122, 13469590), (244, 6734795), (305, 5387836), (401, 4097980), (610, 2693918), (802, 2048990), (1220, 1346959), (1604, 1024495), (2005, 819596), (3359, 489220), (4010, 409798), (6718, 244610), (8020, 204899), (13436, 122305), (16795, 97844), (24461, 67180), (33590, 48922)]