98801900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{349}}^1$

素因数の和:531

約数の個数: 72

約数和(自身を含む): 227850000

約数和(自身を除く): 129048100

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 149, 190, 298, 349, 380, 475, 596, 698, 745, 950, 1396, 1490, 1745, 1900, 2831, 2980, 3490, 3725, 5662, 6631, 6980, 7450, 8725, 11324, 13262, 14155, 14900, 17450, 26524, 28310, 33155, 34900, 52001, 56620, 66310, 70775, 104002, 132620, 141550, 165775, 208004, 260005, 283100, 331550, 520010, 663100, 988019, 1040020, 1300025, 1976038, 2600050, 3952076, 4940095, 5200100, 9880190, 19760380, 24700475, 49400950, 98801900]

約数ペア:

[(1, 98801900), (2, 49400950), (4, 24700475), (5, 19760380), (10, 9880190), (19, 5200100), (20, 4940095), (25, 3952076), (38, 2600050), (50, 1976038), (76, 1300025), (95, 1040020), (100, 988019), (149, 663100), (190, 520010), (298, 331550), (349, 283100), (380, 260005), (475, 208004), (596, 165775), (698, 141550), (745, 132620), (950, 104002), (1396, 70775), (1490, 66310), (1745, 56620), (1900, 52001), (2831, 34900), (2980, 33155), (3490, 28310), (3725, 26524), (5662, 17450), (6631, 14900), (6980, 14155), (7450, 13262), (8725, 11324)]