39428900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:154

約数の個数: 144

約数和(自身を含む): 106659840

約数和(自身を除く): 67230940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 25, 28, 31, 35, 46, 50, 62, 70, 79, 92, 100, 115, 124, 140, 155, 158, 161, 175, 217, 230, 310, 316, 322, 350, 395, 434, 460, 553, 575, 620, 644, 700, 713, 775, 790, 805, 868, 1085, 1106, 1150, 1426, 1550, 1580, 1610, 1817, 1975, 2170, 2212, 2300, 2449, 2765, 2852, 3100, 3220, 3565, 3634, 3950, 4025, 4340, 4898, 4991, 5425, 5530, 7130, 7268, 7900, 8050, 9085, 9796, 9982, 10850, 11060, 12245, 12719, 13825, 14260, 16100, 17143, 17825, 18170, 19964, 21700, 24490, 24955, 25438, 27650, 34286, 35650, 36340, 45425, 48980, 49910, 50876, 55300, 56327, 61225, 63595, 68572, 71300, 85715, 90850, 99820, 112654, 122450, 124775, 127190, 171430, 181700, 225308, 244900, 249550, 254380, 281635, 317975, 342860, 394289, 428575, 499100, 563270, 635950, 788578, 857150, 1126540, 1271900, 1408175, 1577156, 1714300, 1971445, 2816350, 3942890, 5632700, 7885780, 9857225, 19714450, 39428900]

約数ペア:

[(1, 39428900), (2, 19714450), (4, 9857225), (5, 7885780), (7, 5632700), (10, 3942890), (14, 2816350), (20, 1971445), (23, 1714300), (25, 1577156), (28, 1408175), (31, 1271900), (35, 1126540), (46, 857150), (50, 788578), (62, 635950), (70, 563270), (79, 499100), (92, 428575), (100, 394289), (115, 342860), (124, 317975), (140, 281635), (155, 254380), (158, 249550), (161, 244900), (175, 225308), (217, 181700), (230, 171430), (310, 127190), (316, 124775), (322, 122450), (350, 112654), (395, 99820), (434, 90850), (460, 85715), (553, 71300), (575, 68572), (620, 63595), (644, 61225), (700, 56327), (713, 55300), (775, 50876), (790, 49910), (805, 48980), (868, 45425), (1085, 36340), (1106, 35650), (1150, 34286), (1426, 27650), (1550, 25438), (1580, 24955), (1610, 24490), (1817, 21700), (1975, 19964), (2170, 18170), (2212, 17825), (2300, 17143), (2449, 16100), (2765, 14260), (2852, 13825), (3100, 12719), (3220, 12245), (3565, 11060), (3634, 10850), (3950, 9982), (4025, 9796), (4340, 9085), (4898, 8050), (4991, 7900), (5425, 7268), (5530, 7130)]