440785280

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1709}}^1$

素因数の和:1772

約数の個数: 128

約数和(自身を含む): 1172102400

約数和(自身を除く): 731317120

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 128, 130, 155, 160, 208, 248, 260, 310, 320, 403, 416, 496, 520, 620, 640, 806, 832, 992, 1040, 1240, 1612, 1664, 1709, 1984, 2015, 2080, 2480, 3224, 3418, 3968, 4030, 4160, 4960, 6448, 6836, 8060, 8320, 8545, 9920, 12896, 13672, 16120, 17090, 19840, 22217, 25792, 27344, 32240, 34180, 44434, 51584, 52979, 54688, 64480, 68360, 88868, 105958, 109376, 111085, 128960, 136720, 177736, 211916, 218752, 222170, 257920, 264895, 273440, 355472, 423832, 444340, 529790, 546880, 688727, 710944, 847664, 888680, 1059580, 1093760, 1377454, 1421888, 1695328, 1777360, 2119160, 2754908, 2843776, 3390656, 3443635, 3554720, 4238320, 5509816, 6781312, 6887270, 7109440, 8476640, 11019632, 13774540, 14218880, 16953280, 22039264, 27549080, 33906560, 44078528, 55098160, 88157056, 110196320, 220392640, 440785280]

約数ペア:

[(1, 440785280), (2, 220392640), (4, 110196320), (5, 88157056), (8, 55098160), (10, 44078528), (13, 33906560), (16, 27549080), (20, 22039264), (26, 16953280), (31, 14218880), (32, 13774540), (40, 11019632), (52, 8476640), (62, 7109440), (64, 6887270), (65, 6781312), (80, 5509816), (104, 4238320), (124, 3554720), (128, 3443635), (130, 3390656), (155, 2843776), (160, 2754908), (208, 2119160), (248, 1777360), (260, 1695328), (310, 1421888), (320, 1377454), (403, 1093760), (416, 1059580), (496, 888680), (520, 847664), (620, 710944), (640, 688727), (806, 546880), (832, 529790), (992, 444340), (1040, 423832), (1240, 355472), (1612, 273440), (1664, 264895), (1709, 257920), (1984, 222170), (2015, 218752), (2080, 211916), (2480, 177736), (3224, 136720), (3418, 128960), (3968, 111085), (4030, 109376), (4160, 105958), (4960, 88868), (6448, 68360), (6836, 64480), (8060, 54688), (8320, 52979), (8545, 51584), (9920, 44434), (12896, 34180), (13672, 32240), (16120, 27344), (17090, 25792), (19840, 22217)]