78181020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{5233}}^1$

素因数の和:5331

約数の個数: 72

約数和(自身を含む): 240052176

約数和(自身を除く): 161871156

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 83, 90, 166, 180, 249, 332, 415, 498, 747, 830, 996, 1245, 1494, 1660, 2490, 2988, 3735, 4980, 5233, 7470, 10466, 14940, 15699, 20932, 26165, 31398, 47097, 52330, 62796, 78495, 94194, 104660, 156990, 188388, 235485, 313980, 434339, 470970, 868678, 941940, 1303017, 1737356, 2171695, 2606034, 3909051, 4343390, 5212068, 6515085, 7818102, 8686780, 13030170, 15636204, 19545255, 26060340, 39090510, 78181020]

約数ペア:

[(1, 78181020), (2, 39090510), (3, 26060340), (4, 19545255), (5, 15636204), (6, 13030170), (9, 8686780), (10, 7818102), (12, 6515085), (15, 5212068), (18, 4343390), (20, 3909051), (30, 2606034), (36, 2171695), (45, 1737356), (60, 1303017), (83, 941940), (90, 868678), (166, 470970), (180, 434339), (249, 313980), (332, 235485), (415, 188388), (498, 156990), (747, 104660), (830, 94194), (996, 78495), (1245, 62796), (1494, 52330), (1660, 47097), (2490, 31398), (2988, 26165), (3735, 20932), (4980, 15699), (5233, 14940), (7470, 10466)]