87213040

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{317}}^1$

素因数の和:530

約数の個数: 80

約数和(自身を含む): 215298720

約数和(自身を除く): 128085680

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 181, 190, 304, 317, 362, 380, 634, 724, 760, 905, 1268, 1448, 1520, 1585, 1810, 2536, 2896, 3170, 3439, 3620, 5072, 6023, 6340, 6878, 7240, 12046, 12680, 13756, 14480, 17195, 24092, 25360, 27512, 30115, 34390, 48184, 55024, 57377, 60230, 68780, 96368, 114754, 120460, 137560, 229508, 240920, 275120, 286885, 459016, 481840, 573770, 918032, 1090163, 1147540, 2180326, 2295080, 4360652, 4590160, 5450815, 8721304, 10901630, 17442608, 21803260, 43606520, 87213040]

約数ペア:

[(1, 87213040), (2, 43606520), (4, 21803260), (5, 17442608), (8, 10901630), (10, 8721304), (16, 5450815), (19, 4590160), (20, 4360652), (38, 2295080), (40, 2180326), (76, 1147540), (80, 1090163), (95, 918032), (152, 573770), (181, 481840), (190, 459016), (304, 286885), (317, 275120), (362, 240920), (380, 229508), (634, 137560), (724, 120460), (760, 114754), (905, 96368), (1268, 68780), (1448, 60230), (1520, 57377), (1585, 55024), (1810, 48184), (2536, 34390), (2896, 30115), (3170, 27512), (3439, 25360), (3620, 24092), (5072, 17195), (6023, 14480), (6340, 13756), (6878, 12680), (7240, 12046)]