19805370

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1181}}^1$

素因数の和:1247

約数の個数: 64

約数和(自身を含む): 52424064

約数和(自身を除く): 32618694

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 43, 65, 78, 86, 129, 130, 195, 215, 258, 390, 430, 559, 645, 1118, 1181, 1290, 1677, 2362, 2795, 3354, 3543, 5590, 5905, 7086, 8385, 11810, 15353, 16770, 17715, 30706, 35430, 46059, 50783, 76765, 92118, 101566, 152349, 153530, 230295, 253915, 304698, 460590, 507830, 660179, 761745, 1320358, 1523490, 1980537, 3300895, 3961074, 6601790, 9902685, 19805370]

約数ペア:

[(1, 19805370), (2, 9902685), (3, 6601790), (5, 3961074), (6, 3300895), (10, 1980537), (13, 1523490), (15, 1320358), (26, 761745), (30, 660179), (39, 507830), (43, 460590), (65, 304698), (78, 253915), (86, 230295), (129, 153530), (130, 152349), (195, 101566), (215, 92118), (258, 76765), (390, 50783), (430, 46059), (559, 35430), (645, 30706), (1118, 17715), (1181, 16770), (1290, 15353), (1677, 11810), (2362, 8385), (2795, 7086), (3354, 5905), (3543, 5590)]