15661801840

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{521}}^1\times {\mathrm{19777}}^1$

素因数の和:20330

約数の個数: 80

約数和(自身を含む): 38405711520

約数和(自身を除く): 22743909680

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 521, 760, 1042, 1520, 2084, 2605, 4168, 5210, 8336, 9899, 10420, 19777, 19798, 20840, 39554, 39596, 41680, 49495, 79108, 79192, 98885, 98990, 158216, 158384, 197770, 197980, 316432, 375763, 395540, 395960, 751526, 791080, 791920, 1503052, 1582160, 1878815, 3006104, 3757630, 6012208, 7515260, 10303817, 15030520, 20607634, 30061040, 41215268, 51519085, 82430536, 103038170, 164861072, 195772523, 206076340, 391545046, 412152680, 783090092, 824305360, 978862615, 1566180184, 1957725230, 3132360368, 3915450460, 7830900920, 15661801840]

約数ペア:

[(1, 15661801840), (2, 7830900920), (4, 3915450460), (5, 3132360368), (8, 1957725230), (10, 1566180184), (16, 978862615), (19, 824305360), (20, 783090092), (38, 412152680), (40, 391545046), (76, 206076340), (80, 195772523), (95, 164861072), (152, 103038170), (190, 82430536), (304, 51519085), (380, 41215268), (521, 30061040), (760, 20607634), (1042, 15030520), (1520, 10303817), (2084, 7515260), (2605, 6012208), (4168, 3757630), (5210, 3006104), (8336, 1878815), (9899, 1582160), (10420, 1503052), (19777, 791920), (19798, 791080), (20840, 751526), (39554, 395960), (39596, 395540), (41680, 375763), (49495, 316432), (79108, 197980), (79192, 197770), (98885, 158384), (98990, 158216)]