78847990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^2\times {\mathrm{163}}^1$

素因数の和:305

約数の個数: 48

約数和(自身を含む): 156343824

約数和(自身を除く): 77495834

約数列:

[1, 2, 5, 10, 13, 26, 61, 65, 122, 130, 163, 305, 326, 610, 793, 815, 1586, 1630, 2119, 3721, 3965, 4238, 7442, 7930, 9943, 10595, 18605, 19886, 21190, 37210, 48373, 49715, 96746, 99430, 129259, 241865, 258518, 483730, 606523, 646295, 1213046, 1292590, 3032615, 6065230, 7884799, 15769598, 39423995, 78847990]

約数ペア:

[(1, 78847990), (2, 39423995), (5, 15769598), (10, 7884799), (13, 6065230), (26, 3032615), (61, 1292590), (65, 1213046), (122, 646295), (130, 606523), (163, 483730), (305, 258518), (326, 241865), (610, 129259), (793, 99430), (815, 96746), (1586, 49715), (1630, 48373), (2119, 37210), (3721, 21190), (3965, 19886), (4238, 18605), (7442, 10595), (7930, 9943)]