19529970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{173}}^1$

素因数の和:307

約数の個数: 64

約数和(自身を含む): 48708864

約数和(自身を除く): 29178894

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 53, 71, 106, 142, 159, 173, 213, 265, 318, 346, 355, 426, 519, 530, 710, 795, 865, 1038, 1065, 1590, 1730, 2130, 2595, 3763, 5190, 7526, 9169, 11289, 12283, 18338, 18815, 22578, 24566, 27507, 36849, 37630, 45845, 55014, 56445, 61415, 73698, 91690, 112890, 122830, 137535, 184245, 275070, 368490, 650999, 1301998, 1952997, 3254995, 3905994, 6509990, 9764985, 19529970]

約数ペア:

[(1, 19529970), (2, 9764985), (3, 6509990), (5, 3905994), (6, 3254995), (10, 1952997), (15, 1301998), (30, 650999), (53, 368490), (71, 275070), (106, 184245), (142, 137535), (159, 122830), (173, 112890), (213, 91690), (265, 73698), (318, 61415), (346, 56445), (355, 55014), (426, 45845), (519, 37630), (530, 36849), (710, 27507), (795, 24566), (865, 22578), (1038, 18815), (1065, 18338), (1590, 12283), (1730, 11289), (2130, 9169), (2595, 7526), (3763, 5190)]