28998860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{521}}^1$

素因数の和:575

約数の個数: 72

約数和(自身を含む): 69981408

約数和(自身を除く): 40982548

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, 521, 605, 1012, 1042, 1210, 1265, 2084, 2420, 2530, 2605, 2783, 5060, 5210, 5566, 5731, 10420, 11132, 11462, 11983, 13915, 22924, 23966, 27830, 28655, 47932, 55660, 57310, 59915, 63041, 114620, 119830, 126082, 131813, 239660, 252164, 263626, 315205, 527252, 630410, 659065, 1260820, 1318130, 1449943, 2636260, 2899886, 5799772, 7249715, 14499430, 28998860]

約数ペア:

[(1, 28998860), (2, 14499430), (4, 7249715), (5, 5799772), (10, 2899886), (11, 2636260), (20, 1449943), (22, 1318130), (23, 1260820), (44, 659065), (46, 630410), (55, 527252), (92, 315205), (110, 263626), (115, 252164), (121, 239660), (220, 131813), (230, 126082), (242, 119830), (253, 114620), (460, 63041), (484, 59915), (506, 57310), (521, 55660), (605, 47932), (1012, 28655), (1042, 27830), (1210, 23966), (1265, 22924), (2084, 13915), (2420, 11983), (2530, 11462), (2605, 11132), (2783, 10420), (5060, 5731), (5210, 5566)]