28031380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{823}}^1$

素因数の和:976

約数の個数: 48

約数和(自身を含む): 63955584

約数和(自身を除く): 35924204

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 131, 260, 262, 524, 655, 823, 1310, 1646, 1703, 2620, 3292, 3406, 4115, 6812, 8230, 8515, 10699, 16460, 17030, 21398, 34060, 42796, 53495, 106990, 107813, 213980, 215626, 431252, 539065, 1078130, 1401569, 2156260, 2803138, 5606276, 7007845, 14015690, 28031380]

約数ペア:

[(1, 28031380), (2, 14015690), (4, 7007845), (5, 5606276), (10, 2803138), (13, 2156260), (20, 1401569), (26, 1078130), (52, 539065), (65, 431252), (130, 215626), (131, 213980), (260, 107813), (262, 106990), (524, 53495), (655, 42796), (823, 34060), (1310, 21398), (1646, 17030), (1703, 16460), (2620, 10699), (3292, 8515), (3406, 8230), (4115, 6812)]