641567216

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1\times {\mathrm{409}}^1$

素因数の和:586

約数の個数: 80

約数和(自身を含む): 1354377600

約数和(自身を除く): 712810384

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 73, 79, 136, 146, 158, 272, 292, 316, 409, 584, 632, 818, 1168, 1241, 1264, 1343, 1636, 2482, 2686, 3272, 4964, 5372, 5767, 6544, 6953, 9928, 10744, 11534, 13906, 19856, 21488, 23068, 27812, 29857, 32311, 46136, 55624, 59714, 64622, 92272, 98039, 111248, 119428, 129244, 196078, 238856, 258488, 392156, 477712, 507569, 516976, 549287, 784312, 1015138, 1098574, 1568624, 2030276, 2197148, 2358703, 4060552, 4394296, 4717406, 8121104, 8788592, 9434812, 18869624, 37739248, 40097951, 80195902, 160391804, 320783608, 641567216]

約数ペア:

[(1, 641567216), (2, 320783608), (4, 160391804), (8, 80195902), (16, 40097951), (17, 37739248), (34, 18869624), (68, 9434812), (73, 8788592), (79, 8121104), (136, 4717406), (146, 4394296), (158, 4060552), (272, 2358703), (292, 2197148), (316, 2030276), (409, 1568624), (584, 1098574), (632, 1015138), (818, 784312), (1168, 549287), (1241, 516976), (1264, 507569), (1343, 477712), (1636, 392156), (2482, 258488), (2686, 238856), (3272, 196078), (4964, 129244), (5372, 119428), (5767, 111248), (6544, 98039), (6953, 92272), (9928, 64622), (10744, 59714), (11534, 55624), (13906, 46136), (19856, 32311), (21488, 29857), (23068, 27812)]