289095920

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{1663}}^1$

素因数の和:1770

約数の個数: 80

約数和(自身を含む): 701955072

約数和(自身を除く): 412859152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 53, 80, 82, 106, 164, 205, 212, 265, 328, 410, 424, 530, 656, 820, 848, 1060, 1640, 1663, 2120, 2173, 3280, 3326, 4240, 4346, 6652, 8315, 8692, 10865, 13304, 16630, 17384, 21730, 26608, 33260, 34768, 43460, 66520, 68183, 86920, 88139, 133040, 136366, 173840, 176278, 272732, 340915, 352556, 440695, 545464, 681830, 705112, 881390, 1090928, 1363660, 1410224, 1762780, 2727320, 3525560, 3613699, 5454640, 7051120, 7227398, 14454796, 18068495, 28909592, 36136990, 57819184, 72273980, 144547960, 289095920]

約数ペア:

[(1, 289095920), (2, 144547960), (4, 72273980), (5, 57819184), (8, 36136990), (10, 28909592), (16, 18068495), (20, 14454796), (40, 7227398), (41, 7051120), (53, 5454640), (80, 3613699), (82, 3525560), (106, 2727320), (164, 1762780), (205, 1410224), (212, 1363660), (265, 1090928), (328, 881390), (410, 705112), (424, 681830), (530, 545464), (656, 440695), (820, 352556), (848, 340915), (1060, 272732), (1640, 176278), (1663, 173840), (2120, 136366), (2173, 133040), (3280, 88139), (3326, 86920), (4240, 68183), (4346, 66520), (6652, 43460), (8315, 34768), (8692, 33260), (10865, 26608), (13304, 21730), (16630, 17384)]