20310580

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:145

約数の個数: 96

約数和(自身を含む): 48771072

約数和(自身を除く): 28460492

約数列:

[1, 2, 4, 5, 10, 17, 20, 31, 34, 41, 47, 62, 68, 82, 85, 94, 124, 155, 164, 170, 188, 205, 235, 310, 340, 410, 470, 527, 620, 697, 799, 820, 940, 1054, 1271, 1394, 1457, 1598, 1927, 2108, 2542, 2635, 2788, 2914, 3196, 3485, 3854, 3995, 5084, 5270, 5828, 6355, 6970, 7285, 7708, 7990, 9635, 10540, 12710, 13940, 14570, 15980, 19270, 21607, 24769, 25420, 29140, 32759, 38540, 43214, 49538, 59737, 65518, 86428, 99076, 108035, 119474, 123845, 131036, 163795, 216070, 238948, 247690, 298685, 327590, 432140, 495380, 597370, 655180, 1015529, 1194740, 2031058, 4062116, 5077645, 10155290, 20310580]

約数ペア:

[(1, 20310580), (2, 10155290), (4, 5077645), (5, 4062116), (10, 2031058), (17, 1194740), (20, 1015529), (31, 655180), (34, 597370), (41, 495380), (47, 432140), (62, 327590), (68, 298685), (82, 247690), (85, 238948), (94, 216070), (124, 163795), (155, 131036), (164, 123845), (170, 119474), (188, 108035), (205, 99076), (235, 86428), (310, 65518), (340, 59737), (410, 49538), (470, 43214), (527, 38540), (620, 32759), (697, 29140), (799, 25420), (820, 24769), (940, 21607), (1054, 19270), (1271, 15980), (1394, 14570), (1457, 13940), (1598, 12710), (1927, 10540), (2108, 9635), (2542, 7990), (2635, 7708), (2788, 7285), (2914, 6970), (3196, 6355), (3485, 5828), (3854, 5270), (3995, 5084)]