251158720

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{409}}^1$

素因数の和:546

約数の個数: 112

約数和(自身を含む): 637336800

約数和(自身を除く): 386178080

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 101, 152, 160, 190, 202, 304, 320, 380, 404, 409, 505, 608, 760, 808, 818, 1010, 1216, 1520, 1616, 1636, 1919, 2020, 2045, 3040, 3232, 3272, 3838, 4040, 4090, 6080, 6464, 6544, 7676, 7771, 8080, 8180, 9595, 13088, 15352, 15542, 16160, 16360, 19190, 26176, 30704, 31084, 32320, 32720, 38380, 38855, 41309, 61408, 62168, 65440, 76760, 77710, 82618, 122816, 124336, 130880, 153520, 155420, 165236, 206545, 248672, 307040, 310840, 330472, 413090, 497344, 614080, 621680, 660944, 784871, 826180, 1243360, 1321888, 1569742, 1652360, 2486720, 2643776, 3139484, 3304720, 3924355, 6278968, 6609440, 7848710, 12557936, 13218880, 15697420, 25115872, 31394840, 50231744, 62789680, 125579360, 251158720]

約数ペア:

[(1, 251158720), (2, 125579360), (4, 62789680), (5, 50231744), (8, 31394840), (10, 25115872), (16, 15697420), (19, 13218880), (20, 12557936), (32, 7848710), (38, 6609440), (40, 6278968), (64, 3924355), (76, 3304720), (80, 3139484), (95, 2643776), (101, 2486720), (152, 1652360), (160, 1569742), (190, 1321888), (202, 1243360), (304, 826180), (320, 784871), (380, 660944), (404, 621680), (409, 614080), (505, 497344), (608, 413090), (760, 330472), (808, 310840), (818, 307040), (1010, 248672), (1216, 206545), (1520, 165236), (1616, 155420), (1636, 153520), (1919, 130880), (2020, 124336), (2045, 122816), (3040, 82618), (3232, 77710), (3272, 76760), (3838, 65440), (4040, 62168), (4090, 61408), (6080, 41309), (6464, 38855), (6544, 38380), (7676, 32720), (7771, 32320), (8080, 31084), (8180, 30704), (9595, 26176), (13088, 19190), (15352, 16360), (15542, 16160)]