207519720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{307}}^1$

素因数の和:495

約数の個数: 128

約数和(自身を含む): 643991040

約数和(自身を除く): 436471320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 60, 86, 120, 129, 131, 172, 215, 258, 262, 307, 344, 393, 430, 516, 524, 614, 645, 655, 786, 860, 921, 1032, 1048, 1228, 1290, 1310, 1535, 1572, 1720, 1842, 1965, 2456, 2580, 2620, 3070, 3144, 3684, 3930, 4605, 5160, 5240, 5633, 6140, 7368, 7860, 9210, 11266, 12280, 13201, 15720, 16899, 18420, 22532, 26402, 28165, 33798, 36840, 39603, 40217, 45064, 52804, 56330, 66005, 67596, 79206, 80434, 84495, 105608, 112660, 120651, 132010, 135192, 158412, 160868, 168990, 198015, 201085, 225320, 241302, 264020, 316824, 321736, 337980, 396030, 402170, 482604, 528040, 603255, 675960, 792060, 804340, 965208, 1206510, 1584120, 1608680, 1729331, 2413020, 3458662, 4826040, 5187993, 6917324, 8646655, 10375986, 13834648, 17293310, 20751972, 25939965, 34586620, 41503944, 51879930, 69173240, 103759860, 207519720]

約数ペア:

[(1, 207519720), (2, 103759860), (3, 69173240), (4, 51879930), (5, 41503944), (6, 34586620), (8, 25939965), (10, 20751972), (12, 17293310), (15, 13834648), (20, 10375986), (24, 8646655), (30, 6917324), (40, 5187993), (43, 4826040), (60, 3458662), (86, 2413020), (120, 1729331), (129, 1608680), (131, 1584120), (172, 1206510), (215, 965208), (258, 804340), (262, 792060), (307, 675960), (344, 603255), (393, 528040), (430, 482604), (516, 402170), (524, 396030), (614, 337980), (645, 321736), (655, 316824), (786, 264020), (860, 241302), (921, 225320), (1032, 201085), (1048, 198015), (1228, 168990), (1290, 160868), (1310, 158412), (1535, 135192), (1572, 132010), (1720, 120651), (1842, 112660), (1965, 105608), (2456, 84495), (2580, 80434), (2620, 79206), (3070, 67596), (3144, 66005), (3684, 56330), (3930, 52804), (4605, 45064), (5160, 40217), (5240, 39603), (5633, 36840), (6140, 33798), (7368, 28165), (7860, 26402), (9210, 22532), (11266, 18420), (12280, 16899), (13201, 15720)]