79240400

素因数分解:

$2^4\times 5^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{271}}^1$

素因数の和:349

約数の個数: 120

約数和(自身を含む): 207022464

約数和(自身を除く): 127782064

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 34, 40, 43, 50, 68, 80, 85, 86, 100, 136, 170, 172, 200, 215, 271, 272, 340, 344, 400, 425, 430, 542, 680, 688, 731, 850, 860, 1075, 1084, 1355, 1360, 1462, 1700, 1720, 2150, 2168, 2710, 2924, 3400, 3440, 3655, 4300, 4336, 4607, 5420, 5848, 6775, 6800, 7310, 8600, 9214, 10840, 11653, 11696, 13550, 14620, 17200, 18275, 18428, 21680, 23035, 23306, 27100, 29240, 36550, 36856, 46070, 46612, 54200, 58265, 58480, 73100, 73712, 92140, 93224, 108400, 115175, 116530, 146200, 184280, 186448, 198101, 230350, 233060, 291325, 292400, 368560, 396202, 460700, 466120, 582650, 792404, 921400, 932240, 990505, 1165300, 1584808, 1842800, 1981010, 2330600, 3169616, 3962020, 4661200, 4952525, 7924040, 9905050, 15848080, 19810100, 39620200, 79240400]

約数ペア:

[(1, 79240400), (2, 39620200), (4, 19810100), (5, 15848080), (8, 9905050), (10, 7924040), (16, 4952525), (17, 4661200), (20, 3962020), (25, 3169616), (34, 2330600), (40, 1981010), (43, 1842800), (50, 1584808), (68, 1165300), (80, 990505), (85, 932240), (86, 921400), (100, 792404), (136, 582650), (170, 466120), (172, 460700), (200, 396202), (215, 368560), (271, 292400), (272, 291325), (340, 233060), (344, 230350), (400, 198101), (425, 186448), (430, 184280), (542, 146200), (680, 116530), (688, 115175), (731, 108400), (850, 93224), (860, 92140), (1075, 73712), (1084, 73100), (1355, 58480), (1360, 58265), (1462, 54200), (1700, 46612), (1720, 46070), (2150, 36856), (2168, 36550), (2710, 29240), (2924, 27100), (3400, 23306), (3440, 23035), (3655, 21680), (4300, 18428), (4336, 18275), (4607, 17200), (5420, 14620), (5848, 13550), (6775, 11696), (6800, 11653), (7310, 10840), (8600, 9214)]