22720365

素因数分解:

$3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:195

約数の個数: 64

約数和(自身を含む): 42854400

約数和(自身を除く): 20134035

約数列:

[1, 3, 5, 9, 15, 27, 31, 45, 61, 89, 93, 135, 155, 183, 267, 279, 305, 445, 465, 549, 801, 837, 915, 1335, 1395, 1647, 1891, 2403, 2745, 2759, 4005, 4185, 5429, 5673, 8235, 8277, 9455, 12015, 13795, 16287, 17019, 24831, 27145, 28365, 41385, 48861, 51057, 74493, 81435, 85095, 124155, 146583, 168299, 244305, 255285, 372465, 504897, 732915, 841495, 1514691, 2524485, 4544073, 7573455, 22720365]

約数ペア:

[(1, 22720365), (3, 7573455), (5, 4544073), (9, 2524485), (15, 1514691), (27, 841495), (31, 732915), (45, 504897), (61, 372465), (89, 255285), (93, 244305), (135, 168299), (155, 146583), (183, 124155), (267, 85095), (279, 81435), (305, 74493), (445, 51057), (465, 48861), (549, 41385), (801, 28365), (837, 27145), (915, 24831), (1335, 17019), (1395, 16287), (1647, 13795), (1891, 12015), (2403, 9455), (2745, 8277), (2759, 8235), (4005, 5673), (4185, 5429)]