30785560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{811}}^1$

素因数の和:908

約数の個数: 64

約数和(自身を含む): 75710880

約数和(自身を除く): 44925320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 73, 104, 130, 146, 260, 292, 365, 520, 584, 730, 811, 949, 1460, 1622, 1898, 2920, 3244, 3796, 4055, 4745, 6488, 7592, 8110, 9490, 10543, 16220, 18980, 21086, 32440, 37960, 42172, 52715, 59203, 84344, 105430, 118406, 210860, 236812, 296015, 421720, 473624, 592030, 769639, 1184060, 1539278, 2368120, 3078556, 3848195, 6157112, 7696390, 15392780, 30785560]

約数ペア:

[(1, 30785560), (2, 15392780), (4, 7696390), (5, 6157112), (8, 3848195), (10, 3078556), (13, 2368120), (20, 1539278), (26, 1184060), (40, 769639), (52, 592030), (65, 473624), (73, 421720), (104, 296015), (130, 236812), (146, 210860), (260, 118406), (292, 105430), (365, 84344), (520, 59203), (584, 52715), (730, 42172), (811, 37960), (949, 32440), (1460, 21086), (1622, 18980), (1898, 16220), (2920, 10543), (3244, 9490), (3796, 8110), (4055, 7592), (4745, 6488)]