256250520

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{17}}^2\times {\mathrm{821}}^1$

素因数の和:875

約数の個数: 192

約数和(自身を含む): 908474400

約数和(自身を除く): 652223880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 17, 18, 20, 24, 27, 30, 34, 36, 40, 45, 51, 54, 60, 68, 72, 85, 90, 102, 108, 120, 135, 136, 153, 170, 180, 204, 216, 255, 270, 289, 306, 340, 360, 408, 459, 510, 540, 578, 612, 680, 765, 821, 867, 918, 1020, 1080, 1156, 1224, 1445, 1530, 1642, 1734, 1836, 2040, 2295, 2312, 2463, 2601, 2890, 3060, 3284, 3468, 3672, 4105, 4335, 4590, 4926, 5202, 5780, 6120, 6568, 6936, 7389, 7803, 8210, 8670, 9180, 9852, 10404, 11560, 12315, 13005, 13957, 14778, 15606, 16420, 17340, 18360, 19704, 20808, 22167, 24630, 26010, 27914, 29556, 31212, 32840, 34680, 36945, 39015, 41871, 44334, 49260, 52020, 55828, 59112, 62424, 69785, 73890, 78030, 83742, 88668, 98520, 104040, 110835, 111656, 125613, 139570, 147780, 156060, 167484, 177336, 209355, 221670, 237269, 251226, 279140, 295560, 312120, 334968, 376839, 418710, 443340, 474538, 502452, 558280, 628065, 711807, 753678, 837420, 886680, 949076, 1004904, 1186345, 1256130, 1423614, 1507356, 1674840, 1884195, 1898152, 2135421, 2372690, 2512260, 2847228, 3014712, 3559035, 3768390, 4270842, 4745380, 5024520, 5694456, 6406263, 7118070, 7536780, 8541684, 9490760, 10677105, 12812526, 14236140, 15073560, 17083368, 21354210, 25625052, 28472280, 32031315, 42708420, 51250104, 64062630, 85416840, 128125260, 256250520]

約数ペア:

[(1, 256250520), (2, 128125260), (3, 85416840), (4, 64062630), (5, 51250104), (6, 42708420), (8, 32031315), (9, 28472280), (10, 25625052), (12, 21354210), (15, 17083368), (17, 15073560), (18, 14236140), (20, 12812526), (24, 10677105), (27, 9490760), (30, 8541684), (34, 7536780), (36, 7118070), (40, 6406263), (45, 5694456), (51, 5024520), (54, 4745380), (60, 4270842), (68, 3768390), (72, 3559035), (85, 3014712), (90, 2847228), (102, 2512260), (108, 2372690), (120, 2135421), (135, 1898152), (136, 1884195), (153, 1674840), (170, 1507356), (180, 1423614), (204, 1256130), (216, 1186345), (255, 1004904), (270, 949076), (289, 886680), (306, 837420), (340, 753678), (360, 711807), (408, 628065), (459, 558280), (510, 502452), (540, 474538), (578, 443340), (612, 418710), (680, 376839), (765, 334968), (821, 312120), (867, 295560), (918, 279140), (1020, 251226), (1080, 237269), (1156, 221670), (1224, 209355), (1445, 177336), (1530, 167484), (1642, 156060), (1734, 147780), (1836, 139570), (2040, 125613), (2295, 111656), (2312, 110835), (2463, 104040), (2601, 98520), (2890, 88668), (3060, 83742), (3284, 78030), (3468, 73890), (3672, 69785), (4105, 62424), (4335, 59112), (4590, 55828), (4926, 52020), (5202, 49260), (5780, 44334), (6120, 41871), (6568, 39015), (6936, 36945), (7389, 34680), (7803, 32840), (8210, 31212), (8670, 29556), (9180, 27914), (9852, 26010), (10404, 24630), (11560, 22167), (12315, 20808), (13005, 19704), (13957, 18360), (14778, 17340), (15606, 16420)]