1890200450

素因数分解:

$2^1\times 5^2\times {\mathrm{41}}^2\times {\mathrm{43}}^1\times {\mathrm{523}}^1$

素因数の和:660

約数の個数: 72

約数和(自身を含む): 3694470384

約数和(自身を除く): 1804269934

約数列:

[1, 2, 5, 10, 25, 41, 43, 50, 82, 86, 205, 215, 410, 430, 523, 1025, 1046, 1075, 1681, 1763, 2050, 2150, 2615, 3362, 3526, 5230, 8405, 8815, 13075, 16810, 17630, 21443, 22489, 26150, 42025, 42886, 44075, 44978, 72283, 84050, 88150, 107215, 112445, 144566, 214430, 224890, 361415, 536075, 562225, 722830, 879163, 922049, 1072150, 1124450, 1758326, 1807075, 1844098, 3614150, 4395815, 4610245, 8791630, 9220490, 21979075, 23051225, 37804009, 43958150, 46102450, 75608018, 189020045, 378040090, 945100225, 1890200450]

約数ペア:

[(1, 1890200450), (2, 945100225), (5, 378040090), (10, 189020045), (25, 75608018), (41, 46102450), (43, 43958150), (50, 37804009), (82, 23051225), (86, 21979075), (205, 9220490), (215, 8791630), (410, 4610245), (430, 4395815), (523, 3614150), (1025, 1844098), (1046, 1807075), (1075, 1758326), (1681, 1124450), (1763, 1072150), (2050, 922049), (2150, 879163), (2615, 722830), (3362, 562225), (3526, 536075), (5230, 361415), (8405, 224890), (8815, 214430), (13075, 144566), (16810, 112445), (17630, 107215), (21443, 88150), (22489, 84050), (26150, 72283), (42025, 44978), (42886, 44075)]