40849020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{229}}^1\times {\mathrm{991}}^1$

素因数の和:1235

約数の個数: 72

約数和(自身を含む): 124575360

約数和(自身を除く): 83726340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 229, 458, 687, 916, 991, 1145, 1374, 1982, 2061, 2290, 2748, 2973, 3435, 3964, 4122, 4580, 4955, 5946, 6870, 8244, 8919, 9910, 10305, 11892, 13740, 14865, 17838, 19820, 20610, 29730, 35676, 41220, 44595, 59460, 89190, 178380, 226939, 453878, 680817, 907756, 1134695, 1361634, 2042451, 2269390, 2723268, 3404085, 4084902, 4538780, 6808170, 8169804, 10212255, 13616340, 20424510, 40849020]

約数ペア:

[(1, 40849020), (2, 20424510), (3, 13616340), (4, 10212255), (5, 8169804), (6, 6808170), (9, 4538780), (10, 4084902), (12, 3404085), (15, 2723268), (18, 2269390), (20, 2042451), (30, 1361634), (36, 1134695), (45, 907756), (60, 680817), (90, 453878), (180, 226939), (229, 178380), (458, 89190), (687, 59460), (916, 44595), (991, 41220), (1145, 35676), (1374, 29730), (1982, 20610), (2061, 19820), (2290, 17838), (2748, 14865), (2973, 13740), (3435, 11892), (3964, 10305), (4122, 9910), (4580, 8919), (4955, 8244), (5946, 6870)]