20189835

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{353}}^1$

素因数の和:436

約数の個数: 48

約数和(自身を含む): 37110528

約数和(自身を除く): 16920693

約数列:

[1, 3, 5, 9, 15, 31, 41, 45, 93, 123, 155, 205, 279, 353, 369, 465, 615, 1059, 1271, 1395, 1765, 1845, 3177, 3813, 5295, 6355, 10943, 11439, 14473, 15885, 19065, 32829, 43419, 54715, 57195, 72365, 98487, 130257, 164145, 217095, 448663, 492435, 651285, 1345989, 2243315, 4037967, 6729945, 20189835]

約数ペア:

[(1, 20189835), (3, 6729945), (5, 4037967), (9, 2243315), (15, 1345989), (31, 651285), (41, 492435), (45, 448663), (93, 217095), (123, 164145), (155, 130257), (205, 98487), (279, 72365), (353, 57195), (369, 54715), (465, 43419), (615, 32829), (1059, 19065), (1271, 15885), (1395, 14473), (1765, 11439), (1845, 10943), (3177, 6355), (3813, 5295)]