21235680

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{14747}}^1$

素因数の和:14768

約数の個数: 72

約数和(自身を含む): 72471672

約数和(自身を除く): 51235992

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 14747, 29494, 44241, 58988, 73735, 88482, 117976, 132723, 147470, 176964, 221205, 235952, 265446, 294940, 353928, 442410, 471904, 530892, 589880, 663615, 707856, 884820, 1061784, 1179760, 1327230, 1415712, 1769640, 2123568, 2359520, 2654460, 3539280, 4247136, 5308920, 7078560, 10617840, 21235680]

約数ペア:

[(1, 21235680), (2, 10617840), (3, 7078560), (4, 5308920), (5, 4247136), (6, 3539280), (8, 2654460), (9, 2359520), (10, 2123568), (12, 1769640), (15, 1415712), (16, 1327230), (18, 1179760), (20, 1061784), (24, 884820), (30, 707856), (32, 663615), (36, 589880), (40, 530892), (45, 471904), (48, 442410), (60, 353928), (72, 294940), (80, 265446), (90, 235952), (96, 221205), (120, 176964), (144, 147470), (160, 132723), (180, 117976), (240, 88482), (288, 73735), (360, 58988), (480, 44241), (720, 29494), (1440, 14747)]