144400100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{277}}^1\times {\mathrm{401}}^1$

素因数の和:705

約数の個数: 72

約数和(自身を含む): 339514728

約数和(自身を除く): 195114628

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 277, 325, 401, 554, 650, 802, 1108, 1300, 1385, 1604, 2005, 2770, 3601, 4010, 5213, 5540, 6925, 7202, 8020, 10025, 10426, 13850, 14404, 18005, 20050, 20852, 26065, 27700, 36010, 40100, 52130, 72020, 90025, 104260, 111077, 130325, 180050, 222154, 260650, 360100, 444308, 521300, 555385, 1110770, 1444001, 2221540, 2776925, 2888002, 5553850, 5776004, 7220005, 11107700, 14440010, 28880020, 36100025, 72200050, 144400100]

約数ペア:

[(1, 144400100), (2, 72200050), (4, 36100025), (5, 28880020), (10, 14440010), (13, 11107700), (20, 7220005), (25, 5776004), (26, 5553850), (50, 2888002), (52, 2776925), (65, 2221540), (100, 1444001), (130, 1110770), (260, 555385), (277, 521300), (325, 444308), (401, 360100), (554, 260650), (650, 222154), (802, 180050), (1108, 130325), (1300, 111077), (1385, 104260), (1604, 90025), (2005, 72020), (2770, 52130), (3601, 40100), (4010, 36010), (5213, 27700), (5540, 26065), (6925, 20852), (7202, 20050), (8020, 18005), (10025, 14404), (10426, 13850)]