81830055

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1$

素因数の和:264

約数の個数: 64

約数和(自身を含む): 145152000

約数和(自身を除く): 63321945

約数列:

[1, 3, 5, 15, 19, 41, 47, 57, 95, 123, 141, 149, 205, 235, 285, 447, 615, 705, 745, 779, 893, 1927, 2235, 2337, 2679, 2831, 3895, 4465, 5781, 6109, 7003, 8493, 9635, 11685, 13395, 14155, 18327, 21009, 28905, 30545, 35015, 36613, 42465, 91635, 105045, 109839, 116071, 133057, 183065, 287123, 348213, 399171, 549195, 580355, 665285, 861369, 1435615, 1741065, 1995855, 4306845, 5455337, 16366011, 27276685, 81830055]

約数ペア:

[(1, 81830055), (3, 27276685), (5, 16366011), (15, 5455337), (19, 4306845), (41, 1995855), (47, 1741065), (57, 1435615), (95, 861369), (123, 665285), (141, 580355), (149, 549195), (205, 399171), (235, 348213), (285, 287123), (447, 183065), (615, 133057), (705, 116071), (745, 109839), (779, 105045), (893, 91635), (1927, 42465), (2235, 36613), (2337, 35015), (2679, 30545), (2831, 28905), (3895, 21009), (4465, 18327), (5781, 14155), (6109, 13395), (7003, 11685), (8493, 9635)]