721185240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{8429}}^1$

素因数の和:8497

約数の個数: 128

約数和(自身を含む): 2330726400

約数和(自身を除く): 1609541160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 31, 40, 46, 60, 62, 69, 92, 93, 115, 120, 124, 138, 155, 184, 186, 230, 248, 276, 310, 345, 372, 460, 465, 552, 620, 690, 713, 744, 920, 930, 1240, 1380, 1426, 1860, 2139, 2760, 2852, 3565, 3720, 4278, 5704, 7130, 8429, 8556, 10695, 14260, 16858, 17112, 21390, 25287, 28520, 33716, 42145, 42780, 50574, 67432, 84290, 85560, 101148, 126435, 168580, 193867, 202296, 252870, 261299, 337160, 387734, 505740, 522598, 581601, 775468, 783897, 969335, 1011480, 1045196, 1163202, 1306495, 1550936, 1567794, 1938670, 2090392, 2326404, 2612990, 2908005, 3135588, 3877340, 3919485, 4652808, 5225980, 5816010, 6009877, 6271176, 7754680, 7838970, 10451960, 11632020, 12019754, 15677940, 18029631, 23264040, 24039508, 30049385, 31355880, 36059262, 48079016, 60098770, 72118524, 90148155, 120197540, 144237048, 180296310, 240395080, 360592620, 721185240]

約数ペア:

[(1, 721185240), (2, 360592620), (3, 240395080), (4, 180296310), (5, 144237048), (6, 120197540), (8, 90148155), (10, 72118524), (12, 60098770), (15, 48079016), (20, 36059262), (23, 31355880), (24, 30049385), (30, 24039508), (31, 23264040), (40, 18029631), (46, 15677940), (60, 12019754), (62, 11632020), (69, 10451960), (92, 7838970), (93, 7754680), (115, 6271176), (120, 6009877), (124, 5816010), (138, 5225980), (155, 4652808), (184, 3919485), (186, 3877340), (230, 3135588), (248, 2908005), (276, 2612990), (310, 2326404), (345, 2090392), (372, 1938670), (460, 1567794), (465, 1550936), (552, 1306495), (620, 1163202), (690, 1045196), (713, 1011480), (744, 969335), (920, 783897), (930, 775468), (1240, 581601), (1380, 522598), (1426, 505740), (1860, 387734), (2139, 337160), (2760, 261299), (2852, 252870), (3565, 202296), (3720, 193867), (4278, 168580), (5704, 126435), (7130, 101148), (8429, 85560), (8556, 84290), (10695, 67432), (14260, 50574), (16858, 42780), (17112, 42145), (21390, 33716), (25287, 28520)]