30407720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{829}}^1$

素因数の和:978

約数の個数: 64

約数和(自身を含む): 78883200

約数和(自身を除く): 48475480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 131, 140, 262, 280, 524, 655, 829, 917, 1048, 1310, 1658, 1834, 2620, 3316, 3668, 4145, 4585, 5240, 5803, 6632, 7336, 8290, 9170, 11606, 16580, 18340, 23212, 29015, 33160, 36680, 46424, 58030, 108599, 116060, 217198, 232120, 434396, 542995, 760193, 868792, 1085990, 1520386, 2171980, 3040772, 3800965, 4343960, 6081544, 7601930, 15203860, 30407720]

約数ペア:

[(1, 30407720), (2, 15203860), (4, 7601930), (5, 6081544), (7, 4343960), (8, 3800965), (10, 3040772), (14, 2171980), (20, 1520386), (28, 1085990), (35, 868792), (40, 760193), (56, 542995), (70, 434396), (131, 232120), (140, 217198), (262, 116060), (280, 108599), (524, 58030), (655, 46424), (829, 36680), (917, 33160), (1048, 29015), (1310, 23212), (1658, 18340), (1834, 16580), (2620, 11606), (3316, 9170), (3668, 8290), (4145, 7336), (4585, 6632), (5240, 5803)]