78147100

素因数分解:

$2^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{557}}^1$

素因数の和:655

約数の個数: 72

約数和(自身を含む): 180175968

約数和(自身を除く): 102028868

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 46, 50, 61, 92, 100, 115, 122, 230, 244, 305, 460, 557, 575, 610, 1114, 1150, 1220, 1403, 1525, 2228, 2300, 2785, 2806, 3050, 5570, 5612, 6100, 7015, 11140, 12811, 13925, 14030, 25622, 27850, 28060, 33977, 35075, 51244, 55700, 64055, 67954, 70150, 128110, 135908, 140300, 169885, 256220, 320275, 339770, 640550, 679540, 781471, 849425, 1281100, 1562942, 1698850, 3125884, 3397700, 3907355, 7814710, 15629420, 19536775, 39073550, 78147100]

約数ペア:

[(1, 78147100), (2, 39073550), (4, 19536775), (5, 15629420), (10, 7814710), (20, 3907355), (23, 3397700), (25, 3125884), (46, 1698850), (50, 1562942), (61, 1281100), (92, 849425), (100, 781471), (115, 679540), (122, 640550), (230, 339770), (244, 320275), (305, 256220), (460, 169885), (557, 140300), (575, 135908), (610, 128110), (1114, 70150), (1150, 67954), (1220, 64055), (1403, 55700), (1525, 51244), (2228, 35075), (2300, 33977), (2785, 28060), (2806, 27850), (3050, 25622), (5570, 14030), (5612, 13925), (6100, 12811), (7015, 11140)]