320435840

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^2\times {\mathrm{521}}^1$

素因数の和:602

約数の個数: 96

約数和(自身を含む): 793069380

約数和(自身を除く): 472633540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 521, 620, 640, 961, 992, 1042, 1240, 1922, 1984, 2084, 2480, 2605, 3844, 3968, 4168, 4805, 4960, 5210, 7688, 8336, 9610, 9920, 10420, 15376, 16151, 16672, 19220, 19840, 20840, 30752, 32302, 33344, 38440, 41680, 61504, 64604, 66688, 76880, 80755, 83360, 123008, 129208, 153760, 161510, 166720, 258416, 307520, 323020, 333440, 500681, 516832, 615040, 646040, 1001362, 1033664, 1292080, 2002724, 2067328, 2503405, 2584160, 4005448, 5006810, 5168320, 8010896, 10013620, 10336640, 16021792, 20027240, 32043584, 40054480, 64087168, 80108960, 160217920, 320435840]

約数ペア:

[(1, 320435840), (2, 160217920), (4, 80108960), (5, 64087168), (8, 40054480), (10, 32043584), (16, 20027240), (20, 16021792), (31, 10336640), (32, 10013620), (40, 8010896), (62, 5168320), (64, 5006810), (80, 4005448), (124, 2584160), (128, 2503405), (155, 2067328), (160, 2002724), (248, 1292080), (310, 1033664), (320, 1001362), (496, 646040), (521, 615040), (620, 516832), (640, 500681), (961, 333440), (992, 323020), (1042, 307520), (1240, 258416), (1922, 166720), (1984, 161510), (2084, 153760), (2480, 129208), (2605, 123008), (3844, 83360), (3968, 80755), (4168, 76880), (4805, 66688), (4960, 64604), (5210, 61504), (7688, 41680), (8336, 38440), (9610, 33344), (9920, 32302), (10420, 30752), (15376, 20840), (16151, 19840), (16672, 19220)]