309898360

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{2357}}^1$

素因数の和:2560

約数の個数: 64

約数和(自身を含む): 738525600

約数和(自身を除く): 428627240

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 173, 190, 346, 380, 692, 760, 865, 1384, 1730, 2357, 3287, 3460, 4714, 6574, 6920, 9428, 11785, 13148, 16435, 18856, 23570, 26296, 32870, 44783, 47140, 65740, 89566, 94280, 131480, 179132, 223915, 358264, 407761, 447830, 815522, 895660, 1631044, 1791320, 2038805, 3262088, 4077610, 7747459, 8155220, 15494918, 16310440, 30989836, 38737295, 61979672, 77474590, 154949180, 309898360]

約数ペア:

[(1, 309898360), (2, 154949180), (4, 77474590), (5, 61979672), (8, 38737295), (10, 30989836), (19, 16310440), (20, 15494918), (38, 8155220), (40, 7747459), (76, 4077610), (95, 3262088), (152, 2038805), (173, 1791320), (190, 1631044), (346, 895660), (380, 815522), (692, 447830), (760, 407761), (865, 358264), (1384, 223915), (1730, 179132), (2357, 131480), (3287, 94280), (3460, 89566), (4714, 65740), (6574, 47140), (6920, 44783), (9428, 32870), (11785, 26296), (13148, 23570), (16435, 18856)]