80999900

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:144

約数の個数: 144

約数和(自身を含む): 202487040

約数和(自身を除く): 121487140

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 29, 31, 34, 50, 53, 58, 62, 68, 85, 100, 106, 116, 124, 145, 155, 170, 212, 265, 290, 310, 340, 425, 493, 527, 530, 580, 620, 725, 775, 850, 899, 901, 986, 1054, 1060, 1325, 1450, 1537, 1550, 1643, 1700, 1798, 1802, 1972, 2108, 2465, 2635, 2650, 2900, 3074, 3100, 3286, 3596, 3604, 4495, 4505, 4930, 5270, 5300, 6148, 6572, 7685, 8215, 8990, 9010, 9860, 10540, 12325, 13175, 15283, 15370, 16430, 17980, 18020, 22475, 22525, 24650, 26129, 26350, 27931, 30566, 30740, 32860, 38425, 41075, 44950, 45050, 47647, 49300, 52258, 52700, 55862, 61132, 76415, 76850, 82150, 89900, 90100, 95294, 104516, 111724, 130645, 139655, 152830, 153700, 164300, 190588, 238235, 261290, 279310, 305660, 382075, 476470, 522580, 558620, 653225, 698275, 764150, 809999, 952940, 1191175, 1306450, 1396550, 1528300, 1619998, 2382350, 2612900, 2793100, 3239996, 4049995, 4764700, 8099990, 16199980, 20249975, 40499950, 80999900]

約数ペア:

[(1, 80999900), (2, 40499950), (4, 20249975), (5, 16199980), (10, 8099990), (17, 4764700), (20, 4049995), (25, 3239996), (29, 2793100), (31, 2612900), (34, 2382350), (50, 1619998), (53, 1528300), (58, 1396550), (62, 1306450), (68, 1191175), (85, 952940), (100, 809999), (106, 764150), (116, 698275), (124, 653225), (145, 558620), (155, 522580), (170, 476470), (212, 382075), (265, 305660), (290, 279310), (310, 261290), (340, 238235), (425, 190588), (493, 164300), (527, 153700), (530, 152830), (580, 139655), (620, 130645), (725, 111724), (775, 104516), (850, 95294), (899, 90100), (901, 89900), (986, 82150), (1054, 76850), (1060, 76415), (1325, 61132), (1450, 55862), (1537, 52700), (1550, 52258), (1643, 49300), (1700, 47647), (1798, 45050), (1802, 44950), (1972, 41075), (2108, 38425), (2465, 32860), (2635, 30740), (2650, 30566), (2900, 27931), (3074, 26350), (3100, 26129), (3286, 24650), (3596, 22525), (3604, 22475), (4495, 18020), (4505, 17980), (4930, 16430), (5270, 15370), (5300, 15283), (6148, 13175), (6572, 12325), (7685, 10540), (8215, 9860), (8990, 9010)]