202917820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{2621}}^1$

素因数の和:2723

約数の個数: 72

約数和(自身を含む): 502165440

約数和(自身を除く): 299247620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 79, 98, 140, 158, 196, 245, 316, 395, 490, 553, 790, 980, 1106, 1580, 2212, 2621, 2765, 3871, 5242, 5530, 7742, 10484, 11060, 13105, 15484, 18347, 19355, 26210, 36694, 38710, 52420, 73388, 77420, 91735, 128429, 183470, 207059, 256858, 366940, 414118, 513716, 642145, 828236, 1035295, 1284290, 1449413, 2070590, 2568580, 2898826, 4141180, 5797652, 7247065, 10145891, 14494130, 20291782, 28988260, 40583564, 50729455, 101458910, 202917820]

約数ペア:

[(1, 202917820), (2, 101458910), (4, 50729455), (5, 40583564), (7, 28988260), (10, 20291782), (14, 14494130), (20, 10145891), (28, 7247065), (35, 5797652), (49, 4141180), (70, 2898826), (79, 2568580), (98, 2070590), (140, 1449413), (158, 1284290), (196, 1035295), (245, 828236), (316, 642145), (395, 513716), (490, 414118), (553, 366940), (790, 256858), (980, 207059), (1106, 183470), (1580, 128429), (2212, 91735), (2621, 77420), (2765, 73388), (3871, 52420), (5242, 38710), (5530, 36694), (7742, 26210), (10484, 19355), (11060, 18347), (13105, 15484)]