511813720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{239}}^1$

素因数の和:449

約数の個数: 128

約数和(自身を含む): 1310515200

約数和(自身を除く): 798701480

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 124, 155, 157, 220, 239, 248, 310, 314, 341, 440, 478, 620, 628, 682, 785, 956, 1195, 1240, 1256, 1364, 1570, 1705, 1727, 1912, 2390, 2629, 2728, 3140, 3410, 3454, 4780, 4867, 5258, 6280, 6820, 6908, 7409, 8635, 9560, 9734, 10516, 13145, 13640, 13816, 14818, 17270, 19468, 21032, 24335, 26290, 29636, 34540, 37045, 37523, 38936, 48670, 52580, 53537, 59272, 69080, 74090, 75046, 81499, 97340, 105160, 107074, 148180, 150092, 162998, 187615, 194680, 214148, 267685, 296360, 300184, 325996, 375230, 407495, 412753, 428296, 535370, 651992, 750460, 814990, 825506, 1070740, 1163213, 1500920, 1629980, 1651012, 2063765, 2141480, 2326426, 3259960, 3302024, 4127530, 4652852, 5816065, 8255060, 9305704, 11632130, 12795343, 16510120, 23264260, 25590686, 46528520, 51181372, 63976715, 102362744, 127953430, 255906860, 511813720]

約数ペア:

[(1, 511813720), (2, 255906860), (4, 127953430), (5, 102362744), (8, 63976715), (10, 51181372), (11, 46528520), (20, 25590686), (22, 23264260), (31, 16510120), (40, 12795343), (44, 11632130), (55, 9305704), (62, 8255060), (88, 5816065), (110, 4652852), (124, 4127530), (155, 3302024), (157, 3259960), (220, 2326426), (239, 2141480), (248, 2063765), (310, 1651012), (314, 1629980), (341, 1500920), (440, 1163213), (478, 1070740), (620, 825506), (628, 814990), (682, 750460), (785, 651992), (956, 535370), (1195, 428296), (1240, 412753), (1256, 407495), (1364, 375230), (1570, 325996), (1705, 300184), (1727, 296360), (1912, 267685), (2390, 214148), (2629, 194680), (2728, 187615), (3140, 162998), (3410, 150092), (3454, 148180), (4780, 107074), (4867, 105160), (5258, 97340), (6280, 81499), (6820, 75046), (6908, 74090), (7409, 69080), (8635, 59272), (9560, 53537), (9734, 52580), (10516, 48670), (13145, 38936), (13640, 37523), (13816, 37045), (14818, 34540), (17270, 29636), (19468, 26290), (21032, 24335)]