19970520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{461}}^1$

素因数の和:513

約数の個数: 96

約数和(自身を含む): 63367920

約数和(自身を除く): 43397400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 152, 190, 228, 285, 361, 380, 456, 461, 570, 722, 760, 922, 1083, 1140, 1383, 1444, 1805, 1844, 2166, 2280, 2305, 2766, 2888, 3610, 3688, 4332, 4610, 5415, 5532, 6915, 7220, 8664, 8759, 9220, 10830, 11064, 13830, 14440, 17518, 18440, 21660, 26277, 27660, 35036, 43320, 43795, 52554, 55320, 70072, 87590, 105108, 131385, 166421, 175180, 210216, 262770, 332842, 350360, 499263, 525540, 665684, 832105, 998526, 1051080, 1331368, 1664210, 1997052, 2496315, 3328420, 3994104, 4992630, 6656840, 9985260, 19970520]

約数ペア:

[(1, 19970520), (2, 9985260), (3, 6656840), (4, 4992630), (5, 3994104), (6, 3328420), (8, 2496315), (10, 1997052), (12, 1664210), (15, 1331368), (19, 1051080), (20, 998526), (24, 832105), (30, 665684), (38, 525540), (40, 499263), (57, 350360), (60, 332842), (76, 262770), (95, 210216), (114, 175180), (120, 166421), (152, 131385), (190, 105108), (228, 87590), (285, 70072), (361, 55320), (380, 52554), (456, 43795), (461, 43320), (570, 35036), (722, 27660), (760, 26277), (922, 21660), (1083, 18440), (1140, 17518), (1383, 14440), (1444, 13830), (1805, 11064), (1844, 10830), (2166, 9220), (2280, 8759), (2305, 8664), (2766, 7220), (2888, 6915), (3610, 5532), (3688, 5415), (4332, 4610)]