28973780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1$

素因数の和:225

約数の個数: 96

約数和(自身を含む): 71995392

約数和(自身を除く): 43021612

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 61, 68, 85, 110, 122, 127, 170, 187, 220, 244, 254, 305, 340, 374, 508, 610, 635, 671, 748, 935, 1037, 1220, 1270, 1342, 1397, 1870, 2074, 2159, 2540, 2684, 2794, 3355, 3740, 4148, 4318, 5185, 5588, 6710, 6985, 7747, 8636, 10370, 10795, 11407, 13420, 13970, 15494, 20740, 21590, 22814, 23749, 27940, 30988, 38735, 43180, 45628, 47498, 57035, 77470, 85217, 94996, 114070, 118745, 131699, 154940, 170434, 228140, 237490, 263398, 340868, 426085, 474980, 526796, 658495, 852170, 1316990, 1448689, 1704340, 2633980, 2897378, 5794756, 7243445, 14486890, 28973780]

約数ペア:

[(1, 28973780), (2, 14486890), (4, 7243445), (5, 5794756), (10, 2897378), (11, 2633980), (17, 1704340), (20, 1448689), (22, 1316990), (34, 852170), (44, 658495), (55, 526796), (61, 474980), (68, 426085), (85, 340868), (110, 263398), (122, 237490), (127, 228140), (170, 170434), (187, 154940), (220, 131699), (244, 118745), (254, 114070), (305, 94996), (340, 85217), (374, 77470), (508, 57035), (610, 47498), (635, 45628), (671, 43180), (748, 38735), (935, 30988), (1037, 27940), (1220, 23749), (1270, 22814), (1342, 21590), (1397, 20740), (1870, 15494), (2074, 13970), (2159, 13420), (2540, 11407), (2684, 10795), (2794, 10370), (3355, 8636), (3740, 7747), (4148, 6985), (4318, 6710), (5185, 5588)]