1291980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{353}}^1$

素因数の和:426

約数の個数: 48

約数和(自身を含む): 3687264

約数和(自身を除く): 2395284

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 61, 122, 183, 244, 305, 353, 366, 610, 706, 732, 915, 1059, 1220, 1412, 1765, 1830, 2118, 3530, 3660, 4236, 5295, 7060, 10590, 21180, 21533, 43066, 64599, 86132, 107665, 129198, 215330, 258396, 322995, 430660, 645990, 1291980]

約数ペア:

[(1, 1291980), (2, 645990), (3, 430660), (4, 322995), (5, 258396), (6, 215330), (10, 129198), (12, 107665), (15, 86132), (20, 64599), (30, 43066), (60, 21533), (61, 21180), (122, 10590), (183, 7060), (244, 5295), (305, 4236), (353, 3660), (366, 3530), (610, 2118), (706, 1830), (732, 1765), (915, 1412), (1059, 1220)]