78270040

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1$

素因数の和:185

約数の個数: 128

約数和(自身を含む): 199065600

約数和(自身を除く): 120795560

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 31, 34, 40, 47, 62, 68, 79, 85, 94, 124, 136, 155, 158, 170, 188, 235, 248, 310, 316, 340, 376, 395, 470, 527, 620, 632, 680, 790, 799, 940, 1054, 1240, 1343, 1457, 1580, 1598, 1880, 2108, 2449, 2635, 2686, 2914, 3160, 3196, 3713, 3995, 4216, 4898, 5270, 5372, 5828, 6392, 6715, 7285, 7426, 7990, 9796, 10540, 10744, 11656, 12245, 13430, 14570, 14852, 15980, 18565, 19592, 21080, 24490, 24769, 26860, 29140, 29704, 31960, 37130, 41633, 48980, 49538, 53720, 58280, 63121, 74260, 83266, 97960, 99076, 115103, 123845, 126242, 148520, 166532, 198152, 208165, 230206, 247690, 252484, 315605, 333064, 416330, 460412, 495380, 504968, 575515, 631210, 832660, 920824, 990760, 1151030, 1262420, 1665320, 1956751, 2302060, 2524840, 3913502, 4604120, 7827004, 9783755, 15654008, 19567510, 39135020, 78270040]

約数ペア:

[(1, 78270040), (2, 39135020), (4, 19567510), (5, 15654008), (8, 9783755), (10, 7827004), (17, 4604120), (20, 3913502), (31, 2524840), (34, 2302060), (40, 1956751), (47, 1665320), (62, 1262420), (68, 1151030), (79, 990760), (85, 920824), (94, 832660), (124, 631210), (136, 575515), (155, 504968), (158, 495380), (170, 460412), (188, 416330), (235, 333064), (248, 315605), (310, 252484), (316, 247690), (340, 230206), (376, 208165), (395, 198152), (470, 166532), (527, 148520), (620, 126242), (632, 123845), (680, 115103), (790, 99076), (799, 97960), (940, 83266), (1054, 74260), (1240, 63121), (1343, 58280), (1457, 53720), (1580, 49538), (1598, 48980), (1880, 41633), (2108, 37130), (2449, 31960), (2635, 29704), (2686, 29140), (2914, 26860), (3160, 24769), (3196, 24490), (3713, 21080), (3995, 19592), (4216, 18565), (4898, 15980), (5270, 14852), (5372, 14570), (5828, 13430), (6392, 12245), (6715, 11656), (7285, 10744), (7426, 10540), (7990, 9796)]