1567887980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{397}}^1\times {\mathrm{547}}^1$

素因数の和:991

約数の個数: 72

約数和(自身を含む): 3490100208

約数和(自身を除く): 1922212228

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 361, 380, 397, 547, 722, 794, 1094, 1444, 1588, 1805, 1985, 2188, 2735, 3610, 3970, 5470, 7220, 7543, 7940, 10393, 10940, 15086, 20786, 30172, 37715, 41572, 51965, 75430, 103930, 143317, 150860, 197467, 207860, 217159, 286634, 394934, 434318, 573268, 716585, 789868, 868636, 987335, 1085795, 1433170, 1974670, 2171590, 2866340, 3949340, 4126021, 4343180, 8252042, 16504084, 20630105, 41260210, 78394399, 82520420, 156788798, 313577596, 391971995, 783943990, 1567887980]

約数ペア:

[(1, 1567887980), (2, 783943990), (4, 391971995), (5, 313577596), (10, 156788798), (19, 82520420), (20, 78394399), (38, 41260210), (76, 20630105), (95, 16504084), (190, 8252042), (361, 4343180), (380, 4126021), (397, 3949340), (547, 2866340), (722, 2171590), (794, 1974670), (1094, 1433170), (1444, 1085795), (1588, 987335), (1805, 868636), (1985, 789868), (2188, 716585), (2735, 573268), (3610, 434318), (3970, 394934), (5470, 286634), (7220, 217159), (7543, 207860), (7940, 197467), (10393, 150860), (10940, 143317), (15086, 103930), (20786, 75430), (30172, 51965), (37715, 41572)]