1520298920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{257}}^1\times {\mathrm{571}}^1$

素因数の和:883

約数の個数: 128

約数和(自身を含む): 4037679360

約数和(自身を除く): 2517380440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 56, 70, 74, 140, 148, 185, 257, 259, 280, 296, 370, 514, 518, 571, 740, 1028, 1036, 1142, 1285, 1295, 1480, 1799, 2056, 2072, 2284, 2570, 2590, 2855, 3598, 3997, 4568, 5140, 5180, 5710, 7196, 7994, 8995, 9509, 10280, 10360, 11420, 14392, 15988, 17990, 19018, 19985, 21127, 22840, 31976, 35980, 38036, 39970, 42254, 47545, 66563, 71960, 76072, 79940, 84508, 95090, 105635, 133126, 146747, 147889, 159880, 169016, 190180, 211270, 266252, 293494, 295778, 332815, 380360, 422540, 532504, 586988, 591556, 665630, 733735, 739445, 845080, 1027229, 1173976, 1183112, 1331260, 1467470, 1478890, 2054458, 2662520, 2934940, 2957780, 4108916, 5136145, 5429639, 5869880, 5915560, 8217832, 10272290, 10859278, 20544580, 21718556, 27148195, 38007473, 41089160, 43437112, 54296390, 76014946, 108592780, 152029892, 190037365, 217185560, 304059784, 380074730, 760149460, 1520298920]

約数ペア:

[(1, 1520298920), (2, 760149460), (4, 380074730), (5, 304059784), (7, 217185560), (8, 190037365), (10, 152029892), (14, 108592780), (20, 76014946), (28, 54296390), (35, 43437112), (37, 41089160), (40, 38007473), (56, 27148195), (70, 21718556), (74, 20544580), (140, 10859278), (148, 10272290), (185, 8217832), (257, 5915560), (259, 5869880), (280, 5429639), (296, 5136145), (370, 4108916), (514, 2957780), (518, 2934940), (571, 2662520), (740, 2054458), (1028, 1478890), (1036, 1467470), (1142, 1331260), (1285, 1183112), (1295, 1173976), (1480, 1027229), (1799, 845080), (2056, 739445), (2072, 733735), (2284, 665630), (2570, 591556), (2590, 586988), (2855, 532504), (3598, 422540), (3997, 380360), (4568, 332815), (5140, 295778), (5180, 293494), (5710, 266252), (7196, 211270), (7994, 190180), (8995, 169016), (9509, 159880), (10280, 147889), (10360, 146747), (11420, 133126), (14392, 105635), (15988, 95090), (17990, 84508), (19018, 79940), (19985, 76072), (21127, 71960), (22840, 66563), (31976, 47545), (35980, 42254), (38036, 39970)]