72290720

素因数分解:

$2^5\times 5^1\times {\mathrm{229}}^1\times {\mathrm{1973}}^1$

素因数の和:2217

約数の個数: 48

約数和(自身を含む): 171619560

約数和(自身を除く): 99328840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 229, 458, 916, 1145, 1832, 1973, 2290, 3664, 3946, 4580, 7328, 7892, 9160, 9865, 15784, 18320, 19730, 31568, 36640, 39460, 63136, 78920, 157840, 315680, 451817, 903634, 1807268, 2259085, 3614536, 4518170, 7229072, 9036340, 14458144, 18072680, 36145360, 72290720]

約数ペア:

[(1, 72290720), (2, 36145360), (4, 18072680), (5, 14458144), (8, 9036340), (10, 7229072), (16, 4518170), (20, 3614536), (32, 2259085), (40, 1807268), (80, 903634), (160, 451817), (229, 315680), (458, 157840), (916, 78920), (1145, 63136), (1832, 39460), (1973, 36640), (2290, 31568), (3664, 19730), (3946, 18320), (4580, 15784), (7328, 9865), (7892, 9160)]