2019289720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{1669}}^1$

素因数の和:1865

約数の個数: 128

約数和(自身を含む): 5410800000

約数和(自身を除く): 3391510280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 56, 58, 70, 116, 140, 145, 149, 203, 232, 280, 290, 298, 406, 580, 596, 745, 812, 1015, 1043, 1160, 1192, 1490, 1624, 1669, 2030, 2086, 2980, 3338, 4060, 4172, 4321, 5215, 5960, 6676, 8120, 8344, 8345, 8642, 10430, 11683, 13352, 16690, 17284, 20860, 21605, 23366, 30247, 33380, 34568, 41720, 43210, 46732, 48401, 58415, 60494, 66760, 86420, 93464, 96802, 116830, 120988, 151235, 172840, 193604, 233660, 241976, 242005, 248681, 302470, 338807, 387208, 467320, 484010, 497362, 604940, 677614, 968020, 994724, 1209880, 1243405, 1355228, 1694035, 1740767, 1936040, 1989448, 2486810, 2710456, 3388070, 3481534, 4973620, 6776140, 6963068, 7211749, 8703835, 9947240, 13552280, 13926136, 14423498, 17407670, 28846996, 34815340, 36058745, 50482243, 57693992, 69630680, 72117490, 100964486, 144234980, 201928972, 252411215, 288469960, 403857944, 504822430, 1009644860, 2019289720]

約数ペア:

[(1, 2019289720), (2, 1009644860), (4, 504822430), (5, 403857944), (7, 288469960), (8, 252411215), (10, 201928972), (14, 144234980), (20, 100964486), (28, 72117490), (29, 69630680), (35, 57693992), (40, 50482243), (56, 36058745), (58, 34815340), (70, 28846996), (116, 17407670), (140, 14423498), (145, 13926136), (149, 13552280), (203, 9947240), (232, 8703835), (280, 7211749), (290, 6963068), (298, 6776140), (406, 4973620), (580, 3481534), (596, 3388070), (745, 2710456), (812, 2486810), (1015, 1989448), (1043, 1936040), (1160, 1740767), (1192, 1694035), (1490, 1355228), (1624, 1243405), (1669, 1209880), (2030, 994724), (2086, 968020), (2980, 677614), (3338, 604940), (4060, 497362), (4172, 484010), (4321, 467320), (5215, 387208), (5960, 338807), (6676, 302470), (8120, 248681), (8344, 242005), (8345, 241976), (8642, 233660), (10430, 193604), (11683, 172840), (13352, 151235), (16690, 120988), (17284, 116830), (20860, 96802), (21605, 93464), (23366, 86420), (30247, 66760), (33380, 60494), (34568, 58415), (41720, 48401), (43210, 46732)]