256460880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{6323}}^1$

素因数の和:6365

約数の個数: 120

約数和(自身を含む): 861025248

約数和(自身を除く): 604564368

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 169, 195, 208, 240, 260, 312, 338, 390, 507, 520, 624, 676, 780, 845, 1014, 1040, 1352, 1560, 1690, 2028, 2535, 2704, 3120, 3380, 4056, 5070, 6323, 6760, 8112, 10140, 12646, 13520, 18969, 20280, 25292, 31615, 37938, 40560, 50584, 63230, 75876, 82199, 94845, 101168, 126460, 151752, 164398, 189690, 246597, 252920, 303504, 328796, 379380, 410995, 493194, 505840, 657592, 758760, 821990, 986388, 1068587, 1232985, 1315184, 1517520, 1643980, 1972776, 2137174, 2465970, 3205761, 3287960, 3945552, 4274348, 4931940, 5342935, 6411522, 6575920, 8548696, 9863880, 10685870, 12823044, 16028805, 17097392, 19727760, 21371740, 25646088, 32057610, 42743480, 51292176, 64115220, 85486960, 128230440, 256460880]

約数ペア:

[(1, 256460880), (2, 128230440), (3, 85486960), (4, 64115220), (5, 51292176), (6, 42743480), (8, 32057610), (10, 25646088), (12, 21371740), (13, 19727760), (15, 17097392), (16, 16028805), (20, 12823044), (24, 10685870), (26, 9863880), (30, 8548696), (39, 6575920), (40, 6411522), (48, 5342935), (52, 4931940), (60, 4274348), (65, 3945552), (78, 3287960), (80, 3205761), (104, 2465970), (120, 2137174), (130, 1972776), (156, 1643980), (169, 1517520), (195, 1315184), (208, 1232985), (240, 1068587), (260, 986388), (312, 821990), (338, 758760), (390, 657592), (507, 505840), (520, 493194), (624, 410995), (676, 379380), (780, 328796), (845, 303504), (1014, 252920), (1040, 246597), (1352, 189690), (1560, 164398), (1690, 151752), (2028, 126460), (2535, 101168), (2704, 94845), (3120, 82199), (3380, 75876), (4056, 63230), (5070, 50584), (6323, 40560), (6760, 37938), (8112, 31615), (10140, 25292), (12646, 20280), (13520, 18969)]