2171940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{683}}^1$

素因数の和:748

約数の個数: 48

約数和(自身を含む): 6205248

約数和(自身を除く): 4033308

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 53, 60, 106, 159, 212, 265, 318, 530, 636, 683, 795, 1060, 1366, 1590, 2049, 2732, 3180, 3415, 4098, 6830, 8196, 10245, 13660, 20490, 36199, 40980, 72398, 108597, 144796, 180995, 217194, 361990, 434388, 542985, 723980, 1085970, 2171940]

約数ペア:

[(1, 2171940), (2, 1085970), (3, 723980), (4, 542985), (5, 434388), (6, 361990), (10, 217194), (12, 180995), (15, 144796), (20, 108597), (30, 72398), (53, 40980), (60, 36199), (106, 20490), (159, 13660), (212, 10245), (265, 8196), (318, 6830), (530, 4098), (636, 3415), (683, 3180), (795, 2732), (1060, 2049), (1366, 1590)]