19921450

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1019}}^1$

素因数の和:1071

約数の個数: 48

約数和(自身を含む): 40979520

約数和(自身を除く): 21058070

約数列:

[1, 2, 5, 10, 17, 23, 25, 34, 46, 50, 85, 115, 170, 230, 391, 425, 575, 782, 850, 1019, 1150, 1955, 2038, 3910, 5095, 9775, 10190, 17323, 19550, 23437, 25475, 34646, 46874, 50950, 86615, 117185, 173230, 234370, 398429, 433075, 585925, 796858, 866150, 1171850, 1992145, 3984290, 9960725, 19921450]

約数ペア:

[(1, 19921450), (2, 9960725), (5, 3984290), (10, 1992145), (17, 1171850), (23, 866150), (25, 796858), (34, 585925), (46, 433075), (50, 398429), (85, 234370), (115, 173230), (170, 117185), (230, 86615), (391, 50950), (425, 46874), (575, 34646), (782, 25475), (850, 23437), (1019, 19550), (1150, 17323), (1955, 10190), (2038, 9775), (3910, 5095)]