247765860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{19387}}^1$

素因数の和:19473

約数の個数: 72

約数和(自身を含む): 762181056

約数和(自身を除く): 514415196

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, 19387, 38774, 58161, 77548, 96935, 116322, 174483, 193870, 232644, 290805, 348966, 387740, 581610, 697932, 872415, 1163220, 1376477, 1744830, 2752954, 3489660, 4129431, 5505908, 6882385, 8258862, 12388293, 13764770, 16517724, 20647155, 24776586, 27529540, 41294310, 49553172, 61941465, 82588620, 123882930, 247765860]

約数ペア:

[(1, 247765860), (2, 123882930), (3, 82588620), (4, 61941465), (5, 49553172), (6, 41294310), (9, 27529540), (10, 24776586), (12, 20647155), (15, 16517724), (18, 13764770), (20, 12388293), (30, 8258862), (36, 6882385), (45, 5505908), (60, 4129431), (71, 3489660), (90, 2752954), (142, 1744830), (180, 1376477), (213, 1163220), (284, 872415), (355, 697932), (426, 581610), (639, 387740), (710, 348966), (852, 290805), (1065, 232644), (1278, 193870), (1420, 174483), (2130, 116322), (2556, 96935), (3195, 77548), (4260, 58161), (6390, 38774), (12780, 19387)]