1289748400

素因数分解:

$2^4\times 5^2\times {\mathrm{619}}^1\times {\mathrm{5209}}^1$

素因数の和:5846

約数の個数: 60

約数和(自身を含む): 3104222200

約数和(自身を除く): 1814473800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 619, 1238, 2476, 3095, 4952, 5209, 6190, 9904, 10418, 12380, 15475, 20836, 24760, 26045, 30950, 41672, 49520, 52090, 61900, 83344, 104180, 123800, 130225, 208360, 247600, 260450, 416720, 520900, 1041800, 2083600, 3224371, 6448742, 12897484, 16121855, 25794968, 32243710, 51589936, 64487420, 80609275, 128974840, 161218550, 257949680, 322437100, 644874200, 1289748400]

約数ペア:

[(1, 1289748400), (2, 644874200), (4, 322437100), (5, 257949680), (8, 161218550), (10, 128974840), (16, 80609275), (20, 64487420), (25, 51589936), (40, 32243710), (50, 25794968), (80, 16121855), (100, 12897484), (200, 6448742), (400, 3224371), (619, 2083600), (1238, 1041800), (2476, 520900), (3095, 416720), (4952, 260450), (5209, 247600), (6190, 208360), (9904, 130225), (10418, 123800), (12380, 104180), (15475, 83344), (20836, 61900), (24760, 52090), (26045, 49520), (30950, 41672)]