19747230

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{127}}^1$

素因数の和:281

約数の個数: 64

約数和(自身を含む): 49102848

約数和(自身を除く): 29355618

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 71, 73, 127, 142, 146, 213, 219, 254, 355, 365, 381, 426, 438, 635, 710, 730, 762, 1065, 1095, 1270, 1905, 2130, 2190, 3810, 5183, 9017, 9271, 10366, 15549, 18034, 18542, 25915, 27051, 27813, 31098, 45085, 46355, 51830, 54102, 55626, 77745, 90170, 92710, 135255, 139065, 155490, 270510, 278130, 658241, 1316482, 1974723, 3291205, 3949446, 6582410, 9873615, 19747230]

約数ペア:

[(1, 19747230), (2, 9873615), (3, 6582410), (5, 3949446), (6, 3291205), (10, 1974723), (15, 1316482), (30, 658241), (71, 278130), (73, 270510), (127, 155490), (142, 139065), (146, 135255), (213, 92710), (219, 90170), (254, 77745), (355, 55626), (365, 54102), (381, 51830), (426, 46355), (438, 45085), (635, 31098), (710, 27813), (730, 27051), (762, 25915), (1065, 18542), (1095, 18034), (1270, 15549), (1905, 10366), (2130, 9271), (2190, 9017), (3810, 5183)]