28817965

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1$

素因数の和:178

約数の個数: 48

約数和(自身を含む): 42134400

約数和(自身を除く): 13316435

約数列:

[1, 5, 11, 19, 23, 55, 95, 109, 115, 121, 209, 253, 437, 545, 605, 1045, 1199, 1265, 2071, 2185, 2299, 2507, 2783, 4807, 5995, 10355, 11495, 12535, 13189, 13915, 22781, 24035, 27577, 47633, 52877, 65945, 113905, 137885, 238165, 250591, 264385, 303347, 523963, 1252955, 1516735, 2619815, 5763593, 28817965]

約数ペア:

[(1, 28817965), (5, 5763593), (11, 2619815), (19, 1516735), (23, 1252955), (55, 523963), (95, 303347), (109, 264385), (115, 250591), (121, 238165), (209, 137885), (253, 113905), (437, 65945), (545, 52877), (605, 47633), (1045, 27577), (1199, 24035), (1265, 22781), (2071, 13915), (2185, 13189), (2299, 12535), (2507, 11495), (2783, 10355), (4807, 5995)]