210399140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{173}}^1$

素因数の和:286

約数の個数: 144

約数和(自身を含む): 554852592

約数和(自身を除く): 344453452

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 49, 68, 70, 73, 85, 98, 119, 140, 146, 170, 173, 196, 238, 245, 292, 340, 346, 365, 476, 490, 511, 595, 692, 730, 833, 865, 980, 1022, 1190, 1211, 1241, 1460, 1666, 1730, 2044, 2380, 2422, 2482, 2555, 2941, 3332, 3460, 3577, 4165, 4844, 4964, 5110, 5882, 6055, 6205, 7154, 8330, 8477, 8687, 10220, 11764, 12110, 12410, 12629, 14308, 14705, 16660, 16954, 17374, 17885, 20587, 24220, 24820, 25258, 29410, 33908, 34748, 35770, 41174, 42385, 43435, 50516, 58820, 60809, 63145, 71540, 82348, 84770, 86870, 88403, 102935, 121618, 126290, 144109, 169540, 173740, 176806, 205870, 214693, 243236, 252580, 288218, 304045, 353612, 411740, 429386, 442015, 576436, 608090, 618821, 720545, 858772, 884030, 1073465, 1216180, 1237642, 1441090, 1502851, 1768060, 2146930, 2475284, 2882180, 3005702, 3094105, 4293860, 6011404, 6188210, 7514255, 10519957, 12376420, 15028510, 21039914, 30057020, 42079828, 52599785, 105199570, 210399140]

約数ペア:

[(1, 210399140), (2, 105199570), (4, 52599785), (5, 42079828), (7, 30057020), (10, 21039914), (14, 15028510), (17, 12376420), (20, 10519957), (28, 7514255), (34, 6188210), (35, 6011404), (49, 4293860), (68, 3094105), (70, 3005702), (73, 2882180), (85, 2475284), (98, 2146930), (119, 1768060), (140, 1502851), (146, 1441090), (170, 1237642), (173, 1216180), (196, 1073465), (238, 884030), (245, 858772), (292, 720545), (340, 618821), (346, 608090), (365, 576436), (476, 442015), (490, 429386), (511, 411740), (595, 353612), (692, 304045), (730, 288218), (833, 252580), (865, 243236), (980, 214693), (1022, 205870), (1190, 176806), (1211, 173740), (1241, 169540), (1460, 144109), (1666, 126290), (1730, 121618), (2044, 102935), (2380, 88403), (2422, 86870), (2482, 84770), (2555, 82348), (2941, 71540), (3332, 63145), (3460, 60809), (3577, 58820), (4165, 50516), (4844, 43435), (4964, 42385), (5110, 41174), (5882, 35770), (6055, 34748), (6205, 33908), (7154, 29410), (8330, 25258), (8477, 24820), (8687, 24220), (10220, 20587), (11764, 17885), (12110, 17374), (12410, 16954), (12629, 16660), (14308, 14705)]