20375220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{293}}^1$

素因数の和:385

約数の個数: 96

約数和(自身を含む): 61246080

約数和(自身を除く): 40870860

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 61, 76, 95, 114, 122, 183, 190, 228, 244, 285, 293, 305, 366, 380, 570, 586, 610, 732, 879, 915, 1140, 1159, 1172, 1220, 1465, 1758, 1830, 2318, 2930, 3477, 3516, 3660, 4395, 4636, 5567, 5795, 5860, 6954, 8790, 11134, 11590, 13908, 16701, 17385, 17580, 17873, 22268, 23180, 27835, 33402, 34770, 35746, 53619, 55670, 66804, 69540, 71492, 83505, 89365, 107238, 111340, 167010, 178730, 214476, 268095, 334020, 339587, 357460, 536190, 679174, 1018761, 1072380, 1358348, 1697935, 2037522, 3395870, 4075044, 5093805, 6791740, 10187610, 20375220]

約数ペア:

[(1, 20375220), (2, 10187610), (3, 6791740), (4, 5093805), (5, 4075044), (6, 3395870), (10, 2037522), (12, 1697935), (15, 1358348), (19, 1072380), (20, 1018761), (30, 679174), (38, 536190), (57, 357460), (60, 339587), (61, 334020), (76, 268095), (95, 214476), (114, 178730), (122, 167010), (183, 111340), (190, 107238), (228, 89365), (244, 83505), (285, 71492), (293, 69540), (305, 66804), (366, 55670), (380, 53619), (570, 35746), (586, 34770), (610, 33402), (732, 27835), (879, 23180), (915, 22268), (1140, 17873), (1159, 17580), (1172, 17385), (1220, 16701), (1465, 13908), (1758, 11590), (1830, 11134), (2318, 8790), (2930, 6954), (3477, 5860), (3516, 5795), (3660, 5567), (4395, 4636)]