71219916

素因数分解:

$2^2\times 3^2\times {\mathrm{53}}^1\times {\mathrm{163}}^1\times {\mathrm{229}}^1$

素因数の和:455

約数の個数: 72

約数和(自身を含む): 185356080

約数和(自身を除く): 114136164

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 53, 106, 159, 163, 212, 229, 318, 326, 458, 477, 489, 636, 652, 687, 916, 954, 978, 1374, 1467, 1908, 1956, 2061, 2748, 2934, 4122, 5868, 8244, 8639, 12137, 17278, 24274, 25917, 34556, 36411, 37327, 48548, 51834, 72822, 74654, 77751, 103668, 109233, 111981, 145644, 149308, 155502, 218466, 223962, 311004, 335943, 436932, 447924, 671886, 1343772, 1978331, 3956662, 5934993, 7913324, 11869986, 17804979, 23739972, 35609958, 71219916]

約数ペア:

[(1, 71219916), (2, 35609958), (3, 23739972), (4, 17804979), (6, 11869986), (9, 7913324), (12, 5934993), (18, 3956662), (36, 1978331), (53, 1343772), (106, 671886), (159, 447924), (163, 436932), (212, 335943), (229, 311004), (318, 223962), (326, 218466), (458, 155502), (477, 149308), (489, 145644), (636, 111981), (652, 109233), (687, 103668), (916, 77751), (954, 74654), (978, 72822), (1374, 51834), (1467, 48548), (1908, 37327), (1956, 36411), (2061, 34556), (2748, 25917), (2934, 24274), (4122, 17278), (5868, 12137), (8244, 8639)]