81779460

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{194713}}^1$

素因数の和:194732

約数の個数: 48

約数和(自身を含む): 261695616

約数和(自身を除く): 179916156

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 194713, 389426, 584139, 778852, 973565, 1168278, 1362991, 1947130, 2336556, 2725982, 2920695, 3894260, 4088973, 5451964, 5841390, 6814955, 8177946, 11682780, 13629910, 16355892, 20444865, 27259820, 40889730, 81779460]

約数ペア:

[(1, 81779460), (2, 40889730), (3, 27259820), (4, 20444865), (5, 16355892), (6, 13629910), (7, 11682780), (10, 8177946), (12, 6814955), (14, 5841390), (15, 5451964), (20, 4088973), (21, 3894260), (28, 2920695), (30, 2725982), (35, 2336556), (42, 1947130), (60, 1362991), (70, 1168278), (84, 973565), (105, 778852), (140, 584139), (210, 389426), (420, 194713)]