28256280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{307}}^1$

素因数の和:393

約数の個数: 128

約数和(自身を含む): 93139200

約数和(自身を除く): 64882920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 59, 60, 65, 78, 104, 118, 120, 130, 156, 177, 195, 236, 260, 295, 307, 312, 354, 390, 472, 520, 590, 614, 708, 767, 780, 885, 921, 1180, 1228, 1416, 1534, 1535, 1560, 1770, 1842, 2301, 2360, 2456, 3068, 3070, 3540, 3684, 3835, 3991, 4602, 4605, 6136, 6140, 7080, 7368, 7670, 7982, 9204, 9210, 11505, 11973, 12280, 15340, 15964, 18113, 18408, 18420, 19955, 23010, 23946, 30680, 31928, 36226, 36840, 39910, 46020, 47892, 54339, 59865, 72452, 79820, 90565, 92040, 95784, 108678, 119730, 144904, 159640, 181130, 217356, 235469, 239460, 271695, 362260, 434712, 470938, 478920, 543390, 706407, 724520, 941876, 1086780, 1177345, 1412814, 1883752, 2173560, 2354690, 2825628, 3532035, 4709380, 5651256, 7064070, 9418760, 14128140, 28256280]

約数ペア:

[(1, 28256280), (2, 14128140), (3, 9418760), (4, 7064070), (5, 5651256), (6, 4709380), (8, 3532035), (10, 2825628), (12, 2354690), (13, 2173560), (15, 1883752), (20, 1412814), (24, 1177345), (26, 1086780), (30, 941876), (39, 724520), (40, 706407), (52, 543390), (59, 478920), (60, 470938), (65, 434712), (78, 362260), (104, 271695), (118, 239460), (120, 235469), (130, 217356), (156, 181130), (177, 159640), (195, 144904), (236, 119730), (260, 108678), (295, 95784), (307, 92040), (312, 90565), (354, 79820), (390, 72452), (472, 59865), (520, 54339), (590, 47892), (614, 46020), (708, 39910), (767, 36840), (780, 36226), (885, 31928), (921, 30680), (1180, 23946), (1228, 23010), (1416, 19955), (1534, 18420), (1535, 18408), (1560, 18113), (1770, 15964), (1842, 15340), (2301, 12280), (2360, 11973), (2456, 11505), (3068, 9210), (3070, 9204), (3540, 7982), (3684, 7670), (3835, 7368), (3991, 7080), (4602, 6140), (4605, 6136)]