18953493520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{479}}^1\times {\mathrm{38047}}^1$

素因数の和:38552

約数の個数: 80

約数和(自身を含む): 47556956160

約数和(自身を除く): 28603462640

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 479, 520, 958, 1040, 1916, 2395, 3832, 4790, 6227, 7664, 9580, 12454, 19160, 24908, 31135, 38047, 38320, 49816, 62270, 76094, 99632, 124540, 152188, 190235, 249080, 304376, 380470, 494611, 498160, 608752, 760940, 989222, 1521880, 1978444, 2473055, 3043760, 3956888, 4946110, 7913776, 9892220, 18224513, 19784440, 36449026, 39568880, 72898052, 91122565, 145796104, 182245130, 236918669, 291592208, 364490260, 473837338, 728980520, 947674676, 1184593345, 1457961040, 1895349352, 2369186690, 3790698704, 4738373380, 9476746760, 18953493520]

約数ペア:

[(1, 18953493520), (2, 9476746760), (4, 4738373380), (5, 3790698704), (8, 2369186690), (10, 1895349352), (13, 1457961040), (16, 1184593345), (20, 947674676), (26, 728980520), (40, 473837338), (52, 364490260), (65, 291592208), (80, 236918669), (104, 182245130), (130, 145796104), (208, 91122565), (260, 72898052), (479, 39568880), (520, 36449026), (958, 19784440), (1040, 18224513), (1916, 9892220), (2395, 7913776), (3832, 4946110), (4790, 3956888), (6227, 3043760), (7664, 2473055), (9580, 1978444), (12454, 1521880), (19160, 989222), (24908, 760940), (31135, 608752), (38047, 498160), (38320, 494611), (49816, 380470), (62270, 304376), (76094, 249080), (99632, 190235), (124540, 152188)]