81579690

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{4139}}^1$

素因数の和:4228

約数の個数: 64

約数和(自身を含む): 220579200

約数和(自身を除く): 138999510

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 73, 90, 135, 146, 219, 270, 365, 438, 657, 730, 1095, 1314, 1971, 2190, 3285, 3942, 4139, 6570, 8278, 9855, 12417, 19710, 20695, 24834, 37251, 41390, 62085, 74502, 111753, 124170, 186255, 223506, 302147, 372510, 558765, 604294, 906441, 1117530, 1510735, 1812882, 2719323, 3021470, 4532205, 5438646, 8157969, 9064410, 13596615, 16315938, 27193230, 40789845, 81579690]

約数ペア:

[(1, 81579690), (2, 40789845), (3, 27193230), (5, 16315938), (6, 13596615), (9, 9064410), (10, 8157969), (15, 5438646), (18, 4532205), (27, 3021470), (30, 2719323), (45, 1812882), (54, 1510735), (73, 1117530), (90, 906441), (135, 604294), (146, 558765), (219, 372510), (270, 302147), (365, 223506), (438, 186255), (657, 124170), (730, 111753), (1095, 74502), (1314, 62085), (1971, 41390), (2190, 37251), (3285, 24834), (3942, 20695), (4139, 19710), (6570, 12417), (8278, 9855)]