28100380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{257}}^1$

素因数の和:355

約数の個数: 96

約数和(自身を含む): 74898432

約数和(自身を除く): 46798052

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 71, 77, 110, 140, 142, 154, 220, 257, 284, 308, 355, 385, 497, 514, 710, 770, 781, 994, 1028, 1285, 1420, 1540, 1562, 1799, 1988, 2485, 2570, 2827, 3124, 3598, 3905, 4970, 5140, 5467, 5654, 7196, 7810, 8995, 9940, 10934, 11308, 14135, 15620, 17990, 18247, 19789, 21868, 27335, 28270, 35980, 36494, 39578, 54670, 56540, 72988, 79156, 91235, 98945, 109340, 127729, 182470, 197890, 200717, 255458, 364940, 395780, 401434, 510916, 638645, 802868, 1003585, 1277290, 1405019, 2007170, 2554580, 2810038, 4014340, 5620076, 7025095, 14050190, 28100380]

約数ペア:

[(1, 28100380), (2, 14050190), (4, 7025095), (5, 5620076), (7, 4014340), (10, 2810038), (11, 2554580), (14, 2007170), (20, 1405019), (22, 1277290), (28, 1003585), (35, 802868), (44, 638645), (55, 510916), (70, 401434), (71, 395780), (77, 364940), (110, 255458), (140, 200717), (142, 197890), (154, 182470), (220, 127729), (257, 109340), (284, 98945), (308, 91235), (355, 79156), (385, 72988), (497, 56540), (514, 54670), (710, 39578), (770, 36494), (781, 35980), (994, 28270), (1028, 27335), (1285, 21868), (1420, 19789), (1540, 18247), (1562, 17990), (1799, 15620), (1988, 14135), (2485, 11308), (2570, 10934), (2827, 9940), (3124, 8995), (3598, 7810), (3905, 7196), (4970, 5654), (5140, 5467)]