18445960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1867}}^1$

素因数の和:1910

約数の個数: 64

約数和(自身を含む): 47073600

約数和(自身を除く): 28627640

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 380, 494, 520, 760, 988, 1235, 1867, 1976, 2470, 3734, 4940, 7468, 9335, 9880, 14936, 18670, 24271, 35473, 37340, 48542, 70946, 74680, 97084, 121355, 141892, 177365, 194168, 242710, 283784, 354730, 461149, 485420, 709460, 922298, 970840, 1418920, 1844596, 2305745, 3689192, 4611490, 9222980, 18445960]

約数ペア:

[(1, 18445960), (2, 9222980), (4, 4611490), (5, 3689192), (8, 2305745), (10, 1844596), (13, 1418920), (19, 970840), (20, 922298), (26, 709460), (38, 485420), (40, 461149), (52, 354730), (65, 283784), (76, 242710), (95, 194168), (104, 177365), (130, 141892), (152, 121355), (190, 97084), (247, 74680), (260, 70946), (380, 48542), (494, 37340), (520, 35473), (760, 24271), (988, 18670), (1235, 14936), (1867, 9880), (1976, 9335), (2470, 7468), (3734, 4940)]