20061990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{1319}}^1$

素因数の和:1358

約数の個数: 72

約数和(自身を含む): 56525040

約数和(自身を除く): 36463050

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 65, 78, 90, 117, 130, 169, 195, 234, 338, 390, 507, 585, 845, 1014, 1170, 1319, 1521, 1690, 2535, 2638, 3042, 3957, 5070, 6595, 7605, 7914, 11871, 13190, 15210, 17147, 19785, 23742, 34294, 39570, 51441, 59355, 85735, 102882, 118710, 154323, 171470, 222911, 257205, 308646, 445822, 514410, 668733, 771615, 1114555, 1337466, 1543230, 2006199, 2229110, 3343665, 4012398, 6687330, 10030995, 20061990]

約数ペア:

[(1, 20061990), (2, 10030995), (3, 6687330), (5, 4012398), (6, 3343665), (9, 2229110), (10, 2006199), (13, 1543230), (15, 1337466), (18, 1114555), (26, 771615), (30, 668733), (39, 514410), (45, 445822), (65, 308646), (78, 257205), (90, 222911), (117, 171470), (130, 154323), (169, 118710), (195, 102882), (234, 85735), (338, 59355), (390, 51441), (507, 39570), (585, 34294), (845, 23742), (1014, 19785), (1170, 17147), (1319, 15210), (1521, 13190), (1690, 11871), (2535, 7914), (2638, 7605), (3042, 6595), (3957, 5070)]