64779460

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{641}}^1$

素因数の和:844

約数の個数: 48

約数和(自身を含む): 141507072

約数和(自身を除く): 76727612

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 163, 310, 326, 620, 641, 652, 815, 1282, 1630, 2564, 3205, 3260, 5053, 6410, 10106, 12820, 19871, 20212, 25265, 39742, 50530, 79484, 99355, 101060, 104483, 198710, 208966, 397420, 417932, 522415, 1044830, 2089660, 3238973, 6477946, 12955892, 16194865, 32389730, 64779460]

約数ペア:

[(1, 64779460), (2, 32389730), (4, 16194865), (5, 12955892), (10, 6477946), (20, 3238973), (31, 2089660), (62, 1044830), (124, 522415), (155, 417932), (163, 397420), (310, 208966), (326, 198710), (620, 104483), (641, 101060), (652, 99355), (815, 79484), (1282, 50530), (1630, 39742), (2564, 25265), (3205, 20212), (3260, 19871), (5053, 12820), (6410, 10106)]