201991790

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1187}}^1$

素因数の和:1242

約数の個数: 128

約数和(自身を含む): 517321728

約数和(自身を除く): 315329938

約数列:

[1, 2, 5, 7, 10, 11, 13, 14, 17, 22, 26, 34, 35, 55, 65, 70, 77, 85, 91, 110, 119, 130, 143, 154, 170, 182, 187, 221, 238, 286, 374, 385, 442, 455, 595, 715, 770, 910, 935, 1001, 1105, 1187, 1190, 1309, 1430, 1547, 1870, 2002, 2210, 2374, 2431, 2618, 3094, 4862, 5005, 5935, 6545, 7735, 8309, 10010, 11870, 12155, 13057, 13090, 15431, 15470, 16618, 17017, 20179, 24310, 26114, 30862, 34034, 40358, 41545, 65285, 77155, 83090, 85085, 91399, 100895, 108017, 130570, 141253, 154310, 169741, 170170, 182798, 201790, 216034, 221969, 262327, 282506, 339482, 443938, 456995, 524654, 540085, 706265, 848705, 913990, 1080170, 1109845, 1188187, 1311635, 1412530, 1553783, 1697410, 1836289, 2219690, 2376374, 2623270, 2885597, 3107566, 3672578, 5771194, 5940935, 7768915, 9181445, 11881870, 14427985, 15537830, 18362890, 20199179, 28855970, 40398358, 100995895, 201991790]

約数ペア:

[(1, 201991790), (2, 100995895), (5, 40398358), (7, 28855970), (10, 20199179), (11, 18362890), (13, 15537830), (14, 14427985), (17, 11881870), (22, 9181445), (26, 7768915), (34, 5940935), (35, 5771194), (55, 3672578), (65, 3107566), (70, 2885597), (77, 2623270), (85, 2376374), (91, 2219690), (110, 1836289), (119, 1697410), (130, 1553783), (143, 1412530), (154, 1311635), (170, 1188187), (182, 1109845), (187, 1080170), (221, 913990), (238, 848705), (286, 706265), (374, 540085), (385, 524654), (442, 456995), (455, 443938), (595, 339482), (715, 282506), (770, 262327), (910, 221969), (935, 216034), (1001, 201790), (1105, 182798), (1187, 170170), (1190, 169741), (1309, 154310), (1430, 141253), (1547, 130570), (1870, 108017), (2002, 100895), (2210, 91399), (2374, 85085), (2431, 83090), (2618, 77155), (3094, 65285), (4862, 41545), (5005, 40358), (5935, 34034), (6545, 30862), (7735, 26114), (8309, 24310), (10010, 20179), (11870, 17017), (12155, 16618), (13057, 15470), (13090, 15431)]