31478980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{2953}}^1$

素因数の和:3016

約数の個数: 48

約数和(自身を含む): 72951984

約数和(自身を除く): 41473004

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, 2953, 5330, 5906, 10660, 11812, 14765, 29530, 38389, 59060, 76778, 121073, 153556, 191945, 242146, 383890, 484292, 605365, 767780, 1210730, 1573949, 2421460, 3147898, 6295796, 7869745, 15739490, 31478980]

約数ペア:

[(1, 31478980), (2, 15739490), (4, 7869745), (5, 6295796), (10, 3147898), (13, 2421460), (20, 1573949), (26, 1210730), (41, 767780), (52, 605365), (65, 484292), (82, 383890), (130, 242146), (164, 191945), (205, 153556), (260, 121073), (410, 76778), (533, 59060), (820, 38389), (1066, 29530), (2132, 14765), (2665, 11812), (2953, 10660), (5330, 5906)]