20342233720

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{134503}}^1$

素因数の和:134732

約数の個数: 64

約数和(自身を含む): 48421440000

約数和(自身を除く): 28079206280

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 199, 380, 398, 760, 796, 995, 1592, 1990, 3781, 3980, 7562, 7960, 15124, 18905, 30248, 37810, 75620, 134503, 151240, 269006, 538012, 672515, 1076024, 1345030, 2555557, 2690060, 5111114, 5380120, 10222228, 12777785, 20444456, 25555570, 26766097, 51111140, 53532194, 102222280, 107064388, 133830485, 214128776, 267660970, 508555843, 535321940, 1017111686, 1070643880, 2034223372, 2542779215, 4068446744, 5085558430, 10171116860, 20342233720]

約数ペア:

[(1, 20342233720), (2, 10171116860), (4, 5085558430), (5, 4068446744), (8, 2542779215), (10, 2034223372), (19, 1070643880), (20, 1017111686), (38, 535321940), (40, 508555843), (76, 267660970), (95, 214128776), (152, 133830485), (190, 107064388), (199, 102222280), (380, 53532194), (398, 51111140), (760, 26766097), (796, 25555570), (995, 20444456), (1592, 12777785), (1990, 10222228), (3781, 5380120), (3980, 5111114), (7562, 2690060), (7960, 2555557), (15124, 1345030), (18905, 1076024), (30248, 672515), (37810, 538012), (75620, 269006), (134503, 151240)]