15381990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{13147}}^1$

素因数の和:13173

約数の個数: 48

約数和(自身を含む): 43072848

約数和(自身を除く): 27690858

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 65, 78, 90, 117, 130, 195, 234, 390, 585, 1170, 13147, 26294, 39441, 65735, 78882, 118323, 131470, 170911, 197205, 236646, 341822, 394410, 512733, 591615, 854555, 1025466, 1183230, 1538199, 1709110, 2563665, 3076398, 5127330, 7690995, 15381990]

約数ペア:

[(1, 15381990), (2, 7690995), (3, 5127330), (5, 3076398), (6, 2563665), (9, 1709110), (10, 1538199), (13, 1183230), (15, 1025466), (18, 854555), (26, 591615), (30, 512733), (39, 394410), (45, 341822), (65, 236646), (78, 197205), (90, 170911), (117, 131470), (130, 118323), (195, 78882), (234, 65735), (390, 39441), (585, 26294), (1170, 13147)]