1256121080

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^3\times {\mathrm{29}}^1\times {\mathrm{89}}^1$

素因数の和:198

約数の個数: 128

約数和(自身を含む): 3090960000

約数和(自身を除く): 1834838920

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 29, 40, 46, 58, 89, 92, 115, 116, 145, 178, 184, 230, 232, 290, 356, 445, 460, 529, 580, 667, 712, 890, 920, 1058, 1160, 1334, 1780, 2047, 2116, 2581, 2645, 2668, 3335, 3560, 4094, 4232, 5162, 5290, 5336, 6670, 8188, 10235, 10324, 10580, 12167, 12905, 13340, 15341, 16376, 20470, 20648, 21160, 24334, 25810, 26680, 30682, 40940, 47081, 48668, 51620, 59363, 60835, 61364, 76705, 81880, 94162, 97336, 103240, 118726, 121670, 122728, 153410, 188324, 235405, 237452, 243340, 296815, 306820, 352843, 376648, 470810, 474904, 486680, 593630, 613640, 705686, 941620, 1082863, 1187260, 1365349, 1411372, 1764215, 1883240, 2165726, 2374520, 2730698, 2822744, 3528430, 4331452, 5414315, 5461396, 6826745, 7056860, 8662904, 10828630, 10922792, 13653490, 14113720, 21657260, 27306980, 31403027, 43314520, 54613960, 62806054, 125612108, 157015135, 251224216, 314030270, 628060540, 1256121080]

約数ペア:

[(1, 1256121080), (2, 628060540), (4, 314030270), (5, 251224216), (8, 157015135), (10, 125612108), (20, 62806054), (23, 54613960), (29, 43314520), (40, 31403027), (46, 27306980), (58, 21657260), (89, 14113720), (92, 13653490), (115, 10922792), (116, 10828630), (145, 8662904), (178, 7056860), (184, 6826745), (230, 5461396), (232, 5414315), (290, 4331452), (356, 3528430), (445, 2822744), (460, 2730698), (529, 2374520), (580, 2165726), (667, 1883240), (712, 1764215), (890, 1411372), (920, 1365349), (1058, 1187260), (1160, 1082863), (1334, 941620), (1780, 705686), (2047, 613640), (2116, 593630), (2581, 486680), (2645, 474904), (2668, 470810), (3335, 376648), (3560, 352843), (4094, 306820), (4232, 296815), (5162, 243340), (5290, 237452), (5336, 235405), (6670, 188324), (8188, 153410), (10235, 122728), (10324, 121670), (10580, 118726), (12167, 103240), (12905, 97336), (13340, 94162), (15341, 81880), (16376, 76705), (20470, 61364), (20648, 60835), (21160, 59363), (24334, 51620), (25810, 48668), (26680, 47081), (30682, 40940)]