138789560

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{13}}^2\times {\mathrm{419}}^1$

素因数の和:470

約数の個数: 144

約数和(自身を含む): 394291800

約数和(自身を除く): 255502240

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 49, 52, 56, 65, 70, 91, 98, 104, 130, 140, 169, 182, 196, 245, 260, 280, 338, 364, 392, 419, 455, 490, 520, 637, 676, 728, 838, 845, 910, 980, 1183, 1274, 1352, 1676, 1690, 1820, 1960, 2095, 2366, 2548, 2933, 3185, 3352, 3380, 3640, 4190, 4732, 5096, 5447, 5866, 5915, 6370, 6760, 8281, 8380, 9464, 10894, 11732, 11830, 12740, 14665, 16562, 16760, 20531, 21788, 23464, 23660, 25480, 27235, 29330, 33124, 38129, 41062, 41405, 43576, 47320, 54470, 58660, 66248, 70811, 76258, 82124, 82810, 102655, 108940, 117320, 141622, 152516, 164248, 165620, 190645, 205310, 217880, 266903, 283244, 305032, 331240, 354055, 381290, 410620, 495677, 533806, 566488, 708110, 762580, 821240, 991354, 1067612, 1334515, 1416220, 1525160, 1982708, 2135224, 2478385, 2669030, 2832440, 3469739, 3965416, 4956770, 5338060, 6939478, 9913540, 10676120, 13878956, 17348695, 19827080, 27757912, 34697390, 69394780, 138789560]

約数ペア:

[(1, 138789560), (2, 69394780), (4, 34697390), (5, 27757912), (7, 19827080), (8, 17348695), (10, 13878956), (13, 10676120), (14, 9913540), (20, 6939478), (26, 5338060), (28, 4956770), (35, 3965416), (40, 3469739), (49, 2832440), (52, 2669030), (56, 2478385), (65, 2135224), (70, 1982708), (91, 1525160), (98, 1416220), (104, 1334515), (130, 1067612), (140, 991354), (169, 821240), (182, 762580), (196, 708110), (245, 566488), (260, 533806), (280, 495677), (338, 410620), (364, 381290), (392, 354055), (419, 331240), (455, 305032), (490, 283244), (520, 266903), (637, 217880), (676, 205310), (728, 190645), (838, 165620), (845, 164248), (910, 152516), (980, 141622), (1183, 117320), (1274, 108940), (1352, 102655), (1676, 82810), (1690, 82124), (1820, 76258), (1960, 70811), (2095, 66248), (2366, 58660), (2548, 54470), (2933, 47320), (3185, 43576), (3352, 41405), (3380, 41062), (3640, 38129), (4190, 33124), (4732, 29330), (5096, 27235), (5447, 25480), (5866, 23660), (5915, 23464), (6370, 21788), (6760, 20531), (8281, 16760), (8380, 16562), (9464, 14665), (10894, 12740), (11732, 11830)]