25201980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{7369}}^1$

素因数の和:7403

約数の個数: 72

約数和(自身を含む): 80480400

約数和(自身を除く): 55278420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 7369, 14738, 22107, 29476, 36845, 44214, 66321, 73690, 88428, 110535, 132642, 140011, 147380, 221070, 265284, 280022, 331605, 420033, 442140, 560044, 663210, 700055, 840066, 1260099, 1326420, 1400110, 1680132, 2100165, 2520198, 2800220, 4200330, 5040396, 6300495, 8400660, 12600990, 25201980]

約数ペア:

[(1, 25201980), (2, 12600990), (3, 8400660), (4, 6300495), (5, 5040396), (6, 4200330), (9, 2800220), (10, 2520198), (12, 2100165), (15, 1680132), (18, 1400110), (19, 1326420), (20, 1260099), (30, 840066), (36, 700055), (38, 663210), (45, 560044), (57, 442140), (60, 420033), (76, 331605), (90, 280022), (95, 265284), (114, 221070), (171, 147380), (180, 140011), (190, 132642), (228, 110535), (285, 88428), (342, 73690), (380, 66321), (570, 44214), (684, 36845), (855, 29476), (1140, 22107), (1710, 14738), (3420, 7369)]