28659620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:213

約数の個数: 96

約数和(自身を含む): 71124480

約数和(自身を除く): 42464860

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 79, 85, 97, 110, 158, 170, 187, 194, 220, 316, 340, 374, 388, 395, 485, 748, 790, 869, 935, 970, 1067, 1343, 1580, 1649, 1738, 1870, 1940, 2134, 2686, 3298, 3476, 3740, 4268, 4345, 5335, 5372, 6596, 6715, 7663, 8245, 8690, 10670, 13430, 14773, 15326, 16490, 17380, 18139, 21340, 26860, 29546, 30652, 32980, 36278, 38315, 59092, 72556, 73865, 76630, 84293, 90695, 130271, 147730, 153260, 168586, 181390, 260542, 295460, 337172, 362780, 421465, 521084, 651355, 842930, 1302710, 1432981, 1685860, 2605420, 2865962, 5731924, 7164905, 14329810, 28659620]

約数ペア:

[(1, 28659620), (2, 14329810), (4, 7164905), (5, 5731924), (10, 2865962), (11, 2605420), (17, 1685860), (20, 1432981), (22, 1302710), (34, 842930), (44, 651355), (55, 521084), (68, 421465), (79, 362780), (85, 337172), (97, 295460), (110, 260542), (158, 181390), (170, 168586), (187, 153260), (194, 147730), (220, 130271), (316, 90695), (340, 84293), (374, 76630), (388, 73865), (395, 72556), (485, 59092), (748, 38315), (790, 36278), (869, 32980), (935, 30652), (970, 29546), (1067, 26860), (1343, 21340), (1580, 18139), (1649, 17380), (1738, 16490), (1870, 15326), (1940, 14773), (2134, 13430), (2686, 10670), (3298, 8690), (3476, 8245), (3740, 7663), (4268, 6715), (4345, 6596), (5335, 5372)]