404738460

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{321221}}^1$

素因数の和:321243

約数の個数: 72

約数和(自身を含む): 1403097696

約数和(自身を除く): 998359236

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 321221, 642442, 963663, 1284884, 1606105, 1927326, 2248547, 2890989, 3212210, 3854652, 4497094, 4818315, 5781978, 6424420, 6745641, 8994188, 9636630, 11242735, 11563956, 13491282, 14454945, 19273260, 20236923, 22485470, 26982564, 28909890, 33728205, 40473846, 44970940, 57819780, 67456410, 80947692, 101184615, 134912820, 202369230, 404738460]

約数ペア:

[(1, 404738460), (2, 202369230), (3, 134912820), (4, 101184615), (5, 80947692), (6, 67456410), (7, 57819780), (9, 44970940), (10, 40473846), (12, 33728205), (14, 28909890), (15, 26982564), (18, 22485470), (20, 20236923), (21, 19273260), (28, 14454945), (30, 13491282), (35, 11563956), (36, 11242735), (42, 9636630), (45, 8994188), (60, 6745641), (63, 6424420), (70, 5781978), (84, 4818315), (90, 4497094), (105, 3854652), (126, 3212210), (140, 2890989), (180, 2248547), (210, 1927326), (252, 1606105), (315, 1284884), (420, 963663), (630, 642442), (1260, 321221)]