30920620

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{457}}^1$

素因数の和:682

約数の個数: 48

約数和(自身を含む): 69249600

約数和(自身を除く): 38328980

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 199, 340, 398, 457, 796, 914, 995, 1828, 1990, 2285, 3383, 3980, 4570, 6766, 7769, 9140, 13532, 15538, 16915, 31076, 33830, 38845, 67660, 77690, 90943, 155380, 181886, 363772, 454715, 909430, 1546031, 1818860, 3092062, 6184124, 7730155, 15460310, 30920620]

約数ペア:

[(1, 30920620), (2, 15460310), (4, 7730155), (5, 6184124), (10, 3092062), (17, 1818860), (20, 1546031), (34, 909430), (68, 454715), (85, 363772), (170, 181886), (199, 155380), (340, 90943), (398, 77690), (457, 67660), (796, 38845), (914, 33830), (995, 31076), (1828, 16915), (1990, 15538), (2285, 13532), (3383, 9140), (3980, 7769), (4570, 6766)]