398901120

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{373}}^1\times {\mathrm{557}}^1$

素因数の和:952

約数の個数: 128

約数和(自身を含む): 1277195040

約数和(自身を除く): 878293920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 320, 373, 384, 480, 557, 640, 746, 960, 1114, 1119, 1492, 1671, 1865, 1920, 2228, 2238, 2785, 2984, 3342, 3730, 4456, 4476, 5570, 5595, 5968, 6684, 7460, 8355, 8912, 8952, 11140, 11190, 11936, 13368, 14920, 16710, 17824, 17904, 22280, 22380, 23872, 26736, 29840, 33420, 35648, 35808, 44560, 44760, 47744, 53472, 59680, 66840, 71296, 71616, 89120, 89520, 106944, 119360, 133680, 143232, 178240, 179040, 207761, 213888, 238720, 267360, 356480, 358080, 415522, 534720, 623283, 716160, 831044, 1038805, 1069440, 1246566, 1662088, 2077610, 2493132, 3116415, 3324176, 4155220, 4986264, 6232830, 6648352, 8310440, 9972528, 12465660, 13296704, 16620880, 19945056, 24931320, 26593408, 33241760, 39890112, 49862640, 66483520, 79780224, 99725280, 132967040, 199450560, 398901120]

約数ペア:

[(1, 398901120), (2, 199450560), (3, 132967040), (4, 99725280), (5, 79780224), (6, 66483520), (8, 49862640), (10, 39890112), (12, 33241760), (15, 26593408), (16, 24931320), (20, 19945056), (24, 16620880), (30, 13296704), (32, 12465660), (40, 9972528), (48, 8310440), (60, 6648352), (64, 6232830), (80, 4986264), (96, 4155220), (120, 3324176), (128, 3116415), (160, 2493132), (192, 2077610), (240, 1662088), (320, 1246566), (373, 1069440), (384, 1038805), (480, 831044), (557, 716160), (640, 623283), (746, 534720), (960, 415522), (1114, 358080), (1119, 356480), (1492, 267360), (1671, 238720), (1865, 213888), (1920, 207761), (2228, 179040), (2238, 178240), (2785, 143232), (2984, 133680), (3342, 119360), (3730, 106944), (4456, 89520), (4476, 89120), (5570, 71616), (5595, 71296), (5968, 66840), (6684, 59680), (7460, 53472), (8355, 47744), (8912, 44760), (8952, 44560), (11140, 35808), (11190, 35648), (11936, 33420), (13368, 29840), (14920, 26736), (16710, 23872), (17824, 22380), (17904, 22280)]