78810780

素因数分解:

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

素因数の和:487

約数の個数: 72

約数和(自身を含む): 224982576

約数和(自身を除く): 146171796

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, 3721, 4236, 5295, 7060, 7442, 10590, 11163, 14884, 18605, 21180, 21533, 22326, 37210, 43066, 44652, 55815, 64599, 74420, 86132, 107665, 111630, 129198, 215330, 223260, 258396, 322995, 430660, 645990, 1291980, 1313513, 2627026, 3940539, 5254052, 6567565, 7881078, 13135130, 15762156, 19702695, 26270260, 39405390, 78810780]

約数ペア:

[(1, 78810780), (2, 39405390), (3, 26270260), (4, 19702695), (5, 15762156), (6, 13135130), (10, 7881078), (12, 6567565), (15, 5254052), (20, 3940539), (30, 2627026), (60, 1313513), (61, 1291980), (122, 645990), (183, 430660), (244, 322995), (305, 258396), (353, 223260), (366, 215330), (610, 129198), (706, 111630), (732, 107665), (915, 86132), (1059, 74420), (1220, 64599), (1412, 55815), (1765, 44652), (1830, 43066), (2118, 37210), (3530, 22326), (3660, 21533), (3721, 21180), (4236, 18605), (5295, 14884), (7060, 11163), (7442, 10590)]