28330940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{509}}^1$

素因数の和:563

約数の個数: 72

約数和(自身を含む): 68372640

約数和(自身を除く): 40041700

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 121, 220, 230, 242, 253, 460, 484, 506, 509, 605, 1012, 1018, 1210, 1265, 2036, 2420, 2530, 2545, 2783, 5060, 5090, 5566, 5599, 10180, 11132, 11198, 11707, 13915, 22396, 23414, 27830, 27995, 46828, 55660, 55990, 58535, 61589, 111980, 117070, 123178, 128777, 234140, 246356, 257554, 307945, 515108, 615890, 643885, 1231780, 1287770, 1416547, 2575540, 2833094, 5666188, 7082735, 14165470, 28330940]

約数ペア:

[(1, 28330940), (2, 14165470), (4, 7082735), (5, 5666188), (10, 2833094), (11, 2575540), (20, 1416547), (22, 1287770), (23, 1231780), (44, 643885), (46, 615890), (55, 515108), (92, 307945), (110, 257554), (115, 246356), (121, 234140), (220, 128777), (230, 123178), (242, 117070), (253, 111980), (460, 61589), (484, 58535), (506, 55990), (509, 55660), (605, 46828), (1012, 27995), (1018, 27830), (1210, 23414), (1265, 22396), (2036, 13915), (2420, 11707), (2530, 11198), (2545, 11132), (2783, 10180), (5060, 5599), (5090, 5566)]