79820040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{499}}^1$

素因数の和:587

約数の個数: 128

約数和(自身を含む): 253440000

約数和(自身を除く): 173619960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 43, 60, 62, 86, 93, 120, 124, 129, 155, 172, 186, 215, 248, 258, 310, 344, 372, 430, 465, 499, 516, 620, 645, 744, 860, 930, 998, 1032, 1240, 1290, 1333, 1497, 1720, 1860, 1996, 2495, 2580, 2666, 2994, 3720, 3992, 3999, 4990, 5160, 5332, 5988, 6665, 7485, 7998, 9980, 10664, 11976, 13330, 14970, 15469, 15996, 19960, 19995, 21457, 26660, 29940, 30938, 31992, 39990, 42914, 46407, 53320, 59880, 61876, 64371, 77345, 79980, 85828, 92814, 107285, 123752, 128742, 154690, 159960, 171656, 185628, 214570, 232035, 257484, 309380, 321855, 371256, 429140, 464070, 514968, 618760, 643710, 665167, 858280, 928140, 1287420, 1330334, 1856280, 1995501, 2574840, 2660668, 3325835, 3991002, 5321336, 6651670, 7982004, 9977505, 13303340, 15964008, 19955010, 26606680, 39910020, 79820040]

約数ペア:

[(1, 79820040), (2, 39910020), (3, 26606680), (4, 19955010), (5, 15964008), (6, 13303340), (8, 9977505), (10, 7982004), (12, 6651670), (15, 5321336), (20, 3991002), (24, 3325835), (30, 2660668), (31, 2574840), (40, 1995501), (43, 1856280), (60, 1330334), (62, 1287420), (86, 928140), (93, 858280), (120, 665167), (124, 643710), (129, 618760), (155, 514968), (172, 464070), (186, 429140), (215, 371256), (248, 321855), (258, 309380), (310, 257484), (344, 232035), (372, 214570), (430, 185628), (465, 171656), (499, 159960), (516, 154690), (620, 128742), (645, 123752), (744, 107285), (860, 92814), (930, 85828), (998, 79980), (1032, 77345), (1240, 64371), (1290, 61876), (1333, 59880), (1497, 53320), (1720, 46407), (1860, 42914), (1996, 39990), (2495, 31992), (2580, 30938), (2666, 29940), (2994, 26660), (3720, 21457), (3992, 19995), (3999, 19960), (4990, 15996), (5160, 15469), (5332, 14970), (5988, 13330), (6665, 11976), (7485, 10664), (7998, 9980)]