388712720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{14249}}^1$

素因数の和:14304

約数の個数: 80

約数和(自身を含む): 1017792000

約数和(自身を除く): 629079280

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 55, 62, 80, 88, 110, 124, 155, 176, 220, 248, 310, 341, 440, 496, 620, 682, 880, 1240, 1364, 1705, 2480, 2728, 3410, 5456, 6820, 13640, 14249, 27280, 28498, 56996, 71245, 113992, 142490, 156739, 227984, 284980, 313478, 441719, 569960, 626956, 783695, 883438, 1139920, 1253912, 1567390, 1766876, 2208595, 2507824, 3134780, 3533752, 4417190, 4858909, 6269560, 7067504, 8834380, 9717818, 12539120, 17668760, 19435636, 24294545, 35337520, 38871272, 48589090, 77742544, 97178180, 194356360, 388712720]

約数ペア:

[(1, 388712720), (2, 194356360), (4, 97178180), (5, 77742544), (8, 48589090), (10, 38871272), (11, 35337520), (16, 24294545), (20, 19435636), (22, 17668760), (31, 12539120), (40, 9717818), (44, 8834380), (55, 7067504), (62, 6269560), (80, 4858909), (88, 4417190), (110, 3533752), (124, 3134780), (155, 2507824), (176, 2208595), (220, 1766876), (248, 1567390), (310, 1253912), (341, 1139920), (440, 883438), (496, 783695), (620, 626956), (682, 569960), (880, 441719), (1240, 313478), (1364, 284980), (1705, 227984), (2480, 156739), (2728, 142490), (3410, 113992), (5456, 71245), (6820, 56996), (13640, 28498), (14249, 27280)]