86777990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{353}}^1$

素因数の和:465

約数の個数: 64

約数和(自身を含む): 176988672

約数和(自身を除く): 90210682

約数列:

[1, 2, 5, 10, 13, 26, 31, 61, 62, 65, 122, 130, 155, 305, 310, 353, 403, 610, 706, 793, 806, 1586, 1765, 1891, 2015, 3530, 3782, 3965, 4030, 4589, 7930, 9178, 9455, 10943, 18910, 21533, 21886, 22945, 24583, 43066, 45890, 49166, 54715, 107665, 109430, 122915, 142259, 215330, 245830, 279929, 284518, 559858, 667523, 711295, 1335046, 1399645, 1422590, 2799290, 3337615, 6675230, 8677799, 17355598, 43388995, 86777990]

約数ペア:

[(1, 86777990), (2, 43388995), (5, 17355598), (10, 8677799), (13, 6675230), (26, 3337615), (31, 2799290), (61, 1422590), (62, 1399645), (65, 1335046), (122, 711295), (130, 667523), (155, 559858), (305, 284518), (310, 279929), (353, 245830), (403, 215330), (610, 142259), (706, 122915), (793, 109430), (806, 107665), (1586, 54715), (1765, 49166), (1891, 45890), (2015, 43066), (3530, 24583), (3782, 22945), (3965, 21886), (4030, 21533), (4589, 18910), (7930, 10943), (9178, 9455)]