20580420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2579}}^1$

素因数の和:2617

約数の個数: 96

約数和(自身を含む): 69350400

約数和(自身を除く): 48769980

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 57, 60, 70, 76, 84, 95, 105, 114, 133, 140, 190, 210, 228, 266, 285, 380, 399, 420, 532, 570, 665, 798, 1140, 1330, 1596, 1995, 2579, 2660, 3990, 5158, 7737, 7980, 10316, 12895, 15474, 18053, 25790, 30948, 36106, 38685, 49001, 51580, 54159, 72212, 77370, 90265, 98002, 108318, 147003, 154740, 180530, 196004, 216636, 245005, 270795, 294006, 343007, 361060, 490010, 541590, 588012, 686014, 735015, 980020, 1029021, 1083180, 1372028, 1470030, 1715035, 2058042, 2940060, 3430070, 4116084, 5145105, 6860140, 10290210, 20580420]

約数ペア:

[(1, 20580420), (2, 10290210), (3, 6860140), (4, 5145105), (5, 4116084), (6, 3430070), (7, 2940060), (10, 2058042), (12, 1715035), (14, 1470030), (15, 1372028), (19, 1083180), (20, 1029021), (21, 980020), (28, 735015), (30, 686014), (35, 588012), (38, 541590), (42, 490010), (57, 361060), (60, 343007), (70, 294006), (76, 270795), (84, 245005), (95, 216636), (105, 196004), (114, 180530), (133, 154740), (140, 147003), (190, 108318), (210, 98002), (228, 90265), (266, 77370), (285, 72212), (380, 54159), (399, 51580), (420, 49001), (532, 38685), (570, 36106), (665, 30948), (798, 25790), (1140, 18053), (1330, 15474), (1596, 12895), (1995, 10316), (2579, 7980), (2660, 7737), (3990, 5158)]