1658720440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{331}}^1\times {\mathrm{419}}^1$

素因数の和:797

約数の個数: 128

約数和(自身を含む): 4216665600

約数和(自身を除く): 2557945160

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 23, 26, 40, 46, 52, 65, 92, 104, 115, 130, 184, 230, 260, 299, 331, 419, 460, 520, 598, 662, 838, 920, 1196, 1324, 1495, 1655, 1676, 2095, 2392, 2648, 2990, 3310, 3352, 4190, 4303, 5447, 5980, 6620, 7613, 8380, 8606, 9637, 10894, 11960, 13240, 15226, 16760, 17212, 19274, 21515, 21788, 27235, 30452, 34424, 38065, 38548, 43030, 43576, 48185, 54470, 60904, 76130, 77096, 86060, 96370, 98969, 108940, 125281, 138689, 152260, 172120, 192740, 197938, 217880, 250562, 277378, 304520, 385480, 395876, 494845, 501124, 554756, 626405, 693445, 791752, 989690, 1002248, 1109512, 1252810, 1386890, 1802957, 1979380, 2505620, 2773780, 3189847, 3605914, 3958760, 5011240, 5547560, 6379694, 7211828, 9014785, 12759388, 14423656, 15949235, 18029570, 25518776, 31898470, 36059140, 41468011, 63796940, 72118280, 82936022, 127593880, 165872044, 207340055, 331744088, 414680110, 829360220, 1658720440]

約数ペア:

[(1, 1658720440), (2, 829360220), (4, 414680110), (5, 331744088), (8, 207340055), (10, 165872044), (13, 127593880), (20, 82936022), (23, 72118280), (26, 63796940), (40, 41468011), (46, 36059140), (52, 31898470), (65, 25518776), (92, 18029570), (104, 15949235), (115, 14423656), (130, 12759388), (184, 9014785), (230, 7211828), (260, 6379694), (299, 5547560), (331, 5011240), (419, 3958760), (460, 3605914), (520, 3189847), (598, 2773780), (662, 2505620), (838, 1979380), (920, 1802957), (1196, 1386890), (1324, 1252810), (1495, 1109512), (1655, 1002248), (1676, 989690), (2095, 791752), (2392, 693445), (2648, 626405), (2990, 554756), (3310, 501124), (3352, 494845), (4190, 395876), (4303, 385480), (5447, 304520), (5980, 277378), (6620, 250562), (7613, 217880), (8380, 197938), (8606, 192740), (9637, 172120), (10894, 152260), (11960, 138689), (13240, 125281), (15226, 108940), (16760, 98969), (17212, 96370), (19274, 86060), (21515, 77096), (21788, 76130), (27235, 60904), (30452, 54470), (34424, 48185), (38065, 43576), (38548, 43030)]