259435280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{619}}^1$

素因数の和:689

約数の個数: 120

約数和(自身を含む): 675313920

約数和(自身を除く): 415878640

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 169, 208, 248, 260, 310, 338, 403, 496, 520, 619, 620, 676, 806, 845, 1040, 1238, 1240, 1352, 1612, 1690, 2015, 2476, 2480, 2704, 3095, 3224, 3380, 4030, 4952, 5239, 6190, 6448, 6760, 8047, 8060, 9904, 10478, 12380, 13520, 16094, 16120, 19189, 20956, 24760, 26195, 32188, 32240, 38378, 40235, 41912, 49520, 52390, 64376, 76756, 80470, 83824, 95945, 104611, 104780, 128752, 153512, 160940, 191890, 209222, 209560, 249457, 307024, 321880, 383780, 418444, 419120, 498914, 523055, 643760, 767560, 836888, 997828, 1046110, 1247285, 1535120, 1673776, 1995656, 2092220, 2494570, 3242941, 3991312, 4184440, 4989140, 6485882, 8368880, 9978280, 12971764, 16214705, 19956560, 25943528, 32429410, 51887056, 64858820, 129717640, 259435280]

約数ペア:

[(1, 259435280), (2, 129717640), (4, 64858820), (5, 51887056), (8, 32429410), (10, 25943528), (13, 19956560), (16, 16214705), (20, 12971764), (26, 9978280), (31, 8368880), (40, 6485882), (52, 4989140), (62, 4184440), (65, 3991312), (80, 3242941), (104, 2494570), (124, 2092220), (130, 1995656), (155, 1673776), (169, 1535120), (208, 1247285), (248, 1046110), (260, 997828), (310, 836888), (338, 767560), (403, 643760), (496, 523055), (520, 498914), (619, 419120), (620, 418444), (676, 383780), (806, 321880), (845, 307024), (1040, 249457), (1238, 209560), (1240, 209222), (1352, 191890), (1612, 160940), (1690, 153512), (2015, 128752), (2476, 104780), (2480, 104611), (2704, 95945), (3095, 83824), (3224, 80470), (3380, 76756), (4030, 64376), (4952, 52390), (5239, 49520), (6190, 41912), (6448, 40235), (6760, 38378), (8047, 32240), (8060, 32188), (9904, 26195), (10478, 24760), (12380, 20956), (13520, 19189), (16094, 16120)]