15212920

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{541}}^1$

素因数の和:608

約数の個数: 64

約数和(自身を含む): 37072800

約数和(自身を除く): 21859880

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 37, 38, 40, 74, 76, 95, 148, 152, 185, 190, 296, 370, 380, 541, 703, 740, 760, 1082, 1406, 1480, 2164, 2705, 2812, 3515, 4328, 5410, 5624, 7030, 10279, 10820, 14060, 20017, 20558, 21640, 28120, 40034, 41116, 51395, 80068, 82232, 100085, 102790, 160136, 200170, 205580, 380323, 400340, 411160, 760646, 800680, 1521292, 1901615, 3042584, 3803230, 7606460, 15212920]

約数ペア:

[(1, 15212920), (2, 7606460), (4, 3803230), (5, 3042584), (8, 1901615), (10, 1521292), (19, 800680), (20, 760646), (37, 411160), (38, 400340), (40, 380323), (74, 205580), (76, 200170), (95, 160136), (148, 102790), (152, 100085), (185, 82232), (190, 80068), (296, 51395), (370, 41116), (380, 40034), (541, 28120), (703, 21640), (740, 20558), (760, 20017), (1082, 14060), (1406, 10820), (1480, 10279), (2164, 7030), (2705, 5624), (2812, 5410), (3515, 4328)]