277725760

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{661}}^1$

素因数の和:792

約数の個数: 112

約数和(自身を含む): 720346032

約数和(自身を除く): 442620272

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 101, 104, 130, 160, 202, 208, 260, 320, 404, 416, 505, 520, 661, 808, 832, 1010, 1040, 1313, 1322, 1616, 2020, 2080, 2626, 2644, 3232, 3305, 4040, 4160, 5252, 5288, 6464, 6565, 6610, 8080, 8593, 10504, 10576, 13130, 13220, 16160, 17186, 21008, 21152, 26260, 26440, 32320, 34372, 42016, 42304, 42965, 52520, 52880, 66761, 68744, 84032, 85930, 105040, 105760, 133522, 137488, 171860, 210080, 211520, 267044, 274976, 333805, 343720, 420160, 534088, 549952, 667610, 687440, 867893, 1068176, 1335220, 1374880, 1735786, 2136352, 2670440, 2749760, 3471572, 4272704, 4339465, 5340880, 6943144, 8678930, 10681760, 13886288, 17357860, 21363520, 27772576, 34715720, 55545152, 69431440, 138862880, 277725760]

約数ペア:

[(1, 277725760), (2, 138862880), (4, 69431440), (5, 55545152), (8, 34715720), (10, 27772576), (13, 21363520), (16, 17357860), (20, 13886288), (26, 10681760), (32, 8678930), (40, 6943144), (52, 5340880), (64, 4339465), (65, 4272704), (80, 3471572), (101, 2749760), (104, 2670440), (130, 2136352), (160, 1735786), (202, 1374880), (208, 1335220), (260, 1068176), (320, 867893), (404, 687440), (416, 667610), (505, 549952), (520, 534088), (661, 420160), (808, 343720), (832, 333805), (1010, 274976), (1040, 267044), (1313, 211520), (1322, 210080), (1616, 171860), (2020, 137488), (2080, 133522), (2626, 105760), (2644, 105040), (3232, 85930), (3305, 84032), (4040, 68744), (4160, 66761), (5252, 52880), (5288, 52520), (6464, 42965), (6565, 42304), (6610, 42016), (8080, 34372), (8593, 32320), (10504, 26440), (10576, 26260), (13130, 21152), (13220, 21008), (16160, 17186)]