20100527980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1885603}}^1$

素因数の和:1885666

約数の個数: 48

約数和(自身を含む): 46566876384

約数和(自身を除く): 26466348404

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 41, 52, 65, 82, 130, 164, 205, 260, 410, 533, 820, 1066, 2132, 2665, 5330, 10660, 1885603, 3771206, 7542412, 9428015, 18856030, 24512839, 37712060, 49025678, 77309723, 98051356, 122564195, 154619446, 245128390, 309238892, 386548615, 490256780, 773097230, 1005026399, 1546194460, 2010052798, 4020105596, 5025131995, 10050263990, 20100527980]

約数ペア:

[(1, 20100527980), (2, 10050263990), (4, 5025131995), (5, 4020105596), (10, 2010052798), (13, 1546194460), (20, 1005026399), (26, 773097230), (41, 490256780), (52, 386548615), (65, 309238892), (82, 245128390), (130, 154619446), (164, 122564195), (205, 98051356), (260, 77309723), (410, 49025678), (533, 37712060), (820, 24512839), (1066, 18856030), (2132, 9428015), (2665, 7542412), (5330, 3771206), (10660, 1885603)]