287307180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{22481}}^1$

素因数の和:22567

約数の個数: 72

約数和(自身を含む): 883812384

約数和(自身を除く): 596505204

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 142, 180, 213, 284, 355, 426, 639, 710, 852, 1065, 1278, 1420, 2130, 2556, 3195, 4260, 6390, 12780, 22481, 44962, 67443, 89924, 112405, 134886, 202329, 224810, 269772, 337215, 404658, 449620, 674430, 809316, 1011645, 1348860, 1596151, 2023290, 3192302, 4046580, 4788453, 6384604, 7980755, 9576906, 14365359, 15961510, 19153812, 23942265, 28730718, 31923020, 47884530, 57461436, 71826795, 95769060, 143653590, 287307180]

約数ペア:

[(1, 287307180), (2, 143653590), (3, 95769060), (4, 71826795), (5, 57461436), (6, 47884530), (9, 31923020), (10, 28730718), (12, 23942265), (15, 19153812), (18, 15961510), (20, 14365359), (30, 9576906), (36, 7980755), (45, 6384604), (60, 4788453), (71, 4046580), (90, 3192302), (142, 2023290), (180, 1596151), (213, 1348860), (284, 1011645), (355, 809316), (426, 674430), (639, 449620), (710, 404658), (852, 337215), (1065, 269772), (1278, 224810), (1420, 202329), (2130, 134886), (2556, 112405), (3195, 89924), (4260, 67443), (6390, 44962), (12780, 22481)]