21987002920

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1013}}^1\times {\mathrm{28559}}^1$

素因数の和:29602

約数の個数: 64

約数和(自身を含む): 52127712000

約数和(自身を除く): 30140709080

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 1013, 2026, 4052, 5065, 8104, 10130, 19247, 20260, 28559, 38494, 40520, 57118, 76988, 96235, 114236, 142795, 153976, 192470, 228472, 285590, 384940, 542621, 571180, 769880, 1085242, 1142360, 2170484, 2713105, 4340968, 5426210, 10852420, 21704840, 28930267, 57860534, 115721068, 144651335, 231442136, 289302670, 549675073, 578605340, 1099350146, 1157210680, 2198700292, 2748375365, 4397400584, 5496750730, 10993501460, 21987002920]

約数ペア:

[(1, 21987002920), (2, 10993501460), (4, 5496750730), (5, 4397400584), (8, 2748375365), (10, 2198700292), (19, 1157210680), (20, 1099350146), (38, 578605340), (40, 549675073), (76, 289302670), (95, 231442136), (152, 144651335), (190, 115721068), (380, 57860534), (760, 28930267), (1013, 21704840), (2026, 10852420), (4052, 5426210), (5065, 4340968), (8104, 2713105), (10130, 2170484), (19247, 1142360), (20260, 1085242), (28559, 769880), (38494, 571180), (40520, 542621), (57118, 384940), (76988, 285590), (96235, 228472), (114236, 192470), (142795, 153976)]