12905890

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{853}}^1$

素因数の和:966

約数の個数: 32

約数和(自身を含む): 24902640

約数和(自身を除く): 11996750

約数列:

[1, 2, 5, 10, 17, 34, 85, 89, 170, 178, 445, 853, 890, 1513, 1706, 3026, 4265, 7565, 8530, 14501, 15130, 29002, 72505, 75917, 145010, 151834, 379585, 759170, 1290589, 2581178, 6452945, 12905890]

約数ペア:

[(1, 12905890), (2, 6452945), (5, 2581178), (10, 1290589), (17, 759170), (34, 379585), (85, 151834), (89, 145010), (170, 75917), (178, 72505), (445, 29002), (853, 15130), (890, 14501), (1513, 8530), (1706, 7565), (3026, 4265)]