19547820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{829}}^1$

素因数の和:975

約数の個数: 72

約数和(自身を含む): 59819760

約数和(自身を除く): 40271940

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 131, 180, 262, 393, 524, 655, 786, 829, 1179, 1310, 1572, 1658, 1965, 2358, 2487, 2620, 3316, 3930, 4145, 4716, 4974, 5895, 7461, 7860, 8290, 9948, 11790, 12435, 14922, 16580, 23580, 24870, 29844, 37305, 49740, 74610, 108599, 149220, 217198, 325797, 434396, 542995, 651594, 977391, 1085990, 1303188, 1628985, 1954782, 2171980, 3257970, 3909564, 4886955, 6515940, 9773910, 19547820]

約数ペア:

[(1, 19547820), (2, 9773910), (3, 6515940), (4, 4886955), (5, 3909564), (6, 3257970), (9, 2171980), (10, 1954782), (12, 1628985), (15, 1303188), (18, 1085990), (20, 977391), (30, 651594), (36, 542995), (45, 434396), (60, 325797), (90, 217198), (131, 149220), (180, 108599), (262, 74610), (393, 49740), (524, 37305), (655, 29844), (786, 24870), (829, 23580), (1179, 16580), (1310, 14922), (1572, 12435), (1658, 11790), (1965, 9948), (2358, 8290), (2487, 7860), (2620, 7461), (3316, 5895), (3930, 4974), (4145, 4716)]