20172052040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{359}}^1\times {\mathrm{2749}}^1$

素因数の和:3199

約数の個数: 128

約数和(自身を含む): 52747200000

約数和(自身を除く): 32575147960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 73, 140, 146, 280, 292, 359, 365, 511, 584, 718, 730, 1022, 1436, 1460, 1795, 2044, 2513, 2555, 2749, 2872, 2920, 3590, 4088, 5026, 5110, 5498, 7180, 10052, 10220, 10996, 12565, 13745, 14360, 19243, 20104, 20440, 21992, 25130, 26207, 27490, 38486, 50260, 52414, 54980, 76972, 96215, 100520, 104828, 109960, 131035, 153944, 183449, 192430, 200677, 209656, 262070, 366898, 384860, 401354, 524140, 733796, 769720, 802708, 917245, 986891, 1003385, 1048280, 1404739, 1467592, 1605416, 1834490, 1973782, 2006770, 2809478, 3668980, 3947564, 4013540, 4934455, 5618956, 6908237, 7023695, 7337960, 7895128, 8027080, 9868910, 11237912, 13816474, 14047390, 19737820, 27632948, 28094780, 34541185, 39475640, 55265896, 56189560, 69082370, 72043043, 138164740, 144086086, 276329480, 288172172, 360215215, 504301301, 576344344, 720430430, 1008602602, 1440860860, 2017205204, 2521506505, 2881721720, 4034410408, 5043013010, 10086026020, 20172052040]

約数ペア:

[(1, 20172052040), (2, 10086026020), (4, 5043013010), (5, 4034410408), (7, 2881721720), (8, 2521506505), (10, 2017205204), (14, 1440860860), (20, 1008602602), (28, 720430430), (35, 576344344), (40, 504301301), (56, 360215215), (70, 288172172), (73, 276329480), (140, 144086086), (146, 138164740), (280, 72043043), (292, 69082370), (359, 56189560), (365, 55265896), (511, 39475640), (584, 34541185), (718, 28094780), (730, 27632948), (1022, 19737820), (1436, 14047390), (1460, 13816474), (1795, 11237912), (2044, 9868910), (2513, 8027080), (2555, 7895128), (2749, 7337960), (2872, 7023695), (2920, 6908237), (3590, 5618956), (4088, 4934455), (5026, 4013540), (5110, 3947564), (5498, 3668980), (7180, 2809478), (10052, 2006770), (10220, 1973782), (10996, 1834490), (12565, 1605416), (13745, 1467592), (14360, 1404739), (19243, 1048280), (20104, 1003385), (20440, 986891), (21992, 917245), (25130, 802708), (26207, 769720), (27490, 733796), (38486, 524140), (50260, 401354), (52414, 384860), (54980, 366898), (76972, 262070), (96215, 209656), (100520, 200677), (104828, 192430), (109960, 183449), (131035, 153944)]