728816690

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{431}}^1$

素因数の和:505

約数の個数: 128

約数和(自身を含む): 1679616000

約数和(自身を除く): 950799310

約数列:

[1, 2, 5, 7, 10, 14, 17, 29, 34, 35, 49, 58, 70, 85, 98, 119, 145, 170, 203, 238, 245, 290, 343, 406, 431, 490, 493, 595, 686, 833, 862, 986, 1015, 1190, 1421, 1666, 1715, 2030, 2155, 2465, 2842, 3017, 3430, 3451, 4165, 4310, 4930, 5831, 6034, 6902, 7105, 7327, 8330, 9947, 11662, 12499, 14210, 14654, 15085, 17255, 19894, 21119, 24157, 24998, 29155, 30170, 34510, 36635, 42238, 48314, 49735, 51289, 58310, 62495, 73270, 87493, 99470, 102578, 105595, 120785, 124990, 147833, 169099, 174986, 211190, 212483, 241570, 256445, 295666, 338198, 359023, 424966, 437465, 512890, 612451, 718046, 739165, 845495, 874930, 1062415, 1224902, 1478330, 1487381, 1690990, 1795115, 2124830, 2513161, 2974762, 3062255, 3590230, 4287157, 5026322, 6124510, 7436905, 8574314, 10411667, 12565805, 14873810, 20823334, 21435785, 25131610, 42871570, 52058335, 72881669, 104116670, 145763338, 364408345, 728816690]

約数ペア:

[(1, 728816690), (2, 364408345), (5, 145763338), (7, 104116670), (10, 72881669), (14, 52058335), (17, 42871570), (29, 25131610), (34, 21435785), (35, 20823334), (49, 14873810), (58, 12565805), (70, 10411667), (85, 8574314), (98, 7436905), (119, 6124510), (145, 5026322), (170, 4287157), (203, 3590230), (238, 3062255), (245, 2974762), (290, 2513161), (343, 2124830), (406, 1795115), (431, 1690990), (490, 1487381), (493, 1478330), (595, 1224902), (686, 1062415), (833, 874930), (862, 845495), (986, 739165), (1015, 718046), (1190, 612451), (1421, 512890), (1666, 437465), (1715, 424966), (2030, 359023), (2155, 338198), (2465, 295666), (2842, 256445), (3017, 241570), (3430, 212483), (3451, 211190), (4165, 174986), (4310, 169099), (4930, 147833), (5831, 124990), (6034, 120785), (6902, 105595), (7105, 102578), (7327, 99470), (8330, 87493), (9947, 73270), (11662, 62495), (12499, 58310), (14210, 51289), (14654, 49735), (15085, 48314), (17255, 42238), (19894, 36635), (21119, 34510), (24157, 30170), (24998, 29155)]