398958720

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{719}}^1$

素因数の和:775

約数の個数: 192

約数和(自身を含む): 1352764800

約数和(自身を除く): 953806080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 32, 34, 40, 48, 51, 60, 64, 68, 80, 85, 96, 102, 120, 128, 136, 160, 170, 192, 204, 240, 255, 272, 289, 320, 340, 384, 408, 480, 510, 544, 578, 640, 680, 719, 816, 867, 960, 1020, 1088, 1156, 1360, 1438, 1445, 1632, 1734, 1920, 2040, 2157, 2176, 2312, 2720, 2876, 2890, 3264, 3468, 3595, 4080, 4314, 4335, 4624, 5440, 5752, 5780, 6528, 6936, 7190, 8160, 8628, 8670, 9248, 10785, 10880, 11504, 11560, 12223, 13872, 14380, 16320, 17256, 17340, 18496, 21570, 23008, 23120, 24446, 27744, 28760, 32640, 34512, 34680, 36669, 36992, 43140, 46016, 46240, 48892, 55488, 57520, 61115, 69024, 69360, 73338, 86280, 92032, 92480, 97784, 110976, 115040, 122230, 138048, 138720, 146676, 172560, 183345, 184960, 195568, 207791, 230080, 244460, 276096, 277440, 293352, 345120, 366690, 391136, 415582, 460160, 488920, 554880, 586704, 623373, 690240, 733380, 782272, 831164, 977840, 1038955, 1173408, 1246746, 1380480, 1466760, 1564544, 1662328, 1955680, 2077910, 2346816, 2493492, 2933520, 3116865, 3324656, 3911360, 4155820, 4693632, 4986984, 5867040, 6233730, 6649312, 7822720, 8311640, 9973968, 11734080, 12467460, 13298624, 16623280, 19947936, 23468160, 24934920, 26597248, 33246560, 39895872, 49869840, 66493120, 79791744, 99739680, 132986240, 199479360, 398958720]

約数ペア:

[(1, 398958720), (2, 199479360), (3, 132986240), (4, 99739680), (5, 79791744), (6, 66493120), (8, 49869840), (10, 39895872), (12, 33246560), (15, 26597248), (16, 24934920), (17, 23468160), (20, 19947936), (24, 16623280), (30, 13298624), (32, 12467460), (34, 11734080), (40, 9973968), (48, 8311640), (51, 7822720), (60, 6649312), (64, 6233730), (68, 5867040), (80, 4986984), (85, 4693632), (96, 4155820), (102, 3911360), (120, 3324656), (128, 3116865), (136, 2933520), (160, 2493492), (170, 2346816), (192, 2077910), (204, 1955680), (240, 1662328), (255, 1564544), (272, 1466760), (289, 1380480), (320, 1246746), (340, 1173408), (384, 1038955), (408, 977840), (480, 831164), (510, 782272), (544, 733380), (578, 690240), (640, 623373), (680, 586704), (719, 554880), (816, 488920), (867, 460160), (960, 415582), (1020, 391136), (1088, 366690), (1156, 345120), (1360, 293352), (1438, 277440), (1445, 276096), (1632, 244460), (1734, 230080), (1920, 207791), (2040, 195568), (2157, 184960), (2176, 183345), (2312, 172560), (2720, 146676), (2876, 138720), (2890, 138048), (3264, 122230), (3468, 115040), (3595, 110976), (4080, 97784), (4314, 92480), (4335, 92032), (4624, 86280), (5440, 73338), (5752, 69360), (5780, 69024), (6528, 61115), (6936, 57520), (7190, 55488), (8160, 48892), (8628, 46240), (8670, 46016), (9248, 43140), (10785, 36992), (10880, 36669), (11504, 34680), (11560, 34512), (12223, 32640), (13872, 28760), (14380, 27744), (16320, 24446), (17256, 23120), (17340, 23008), (18496, 21570)]