221992120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{313}}^1$

素因数の和:497

約数の個数: 128

約数和(自身を含む): 610416000

約数和(自身を除く): 388423880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 56, 68, 70, 85, 119, 136, 140, 149, 170, 238, 280, 298, 313, 340, 476, 595, 596, 626, 680, 745, 952, 1043, 1190, 1192, 1252, 1490, 1565, 2086, 2191, 2380, 2504, 2533, 2980, 3130, 4172, 4382, 4760, 5066, 5215, 5321, 5960, 6260, 8344, 8764, 10132, 10430, 10642, 10955, 12520, 12665, 17528, 17731, 20264, 20860, 21284, 21910, 25330, 26605, 35462, 37247, 41720, 42568, 43820, 46637, 50660, 53210, 70924, 74494, 87640, 88655, 93274, 101320, 106420, 141848, 148988, 177310, 186235, 186548, 212840, 233185, 297976, 326459, 354620, 372470, 373096, 466370, 652918, 709240, 744940, 792829, 932740, 1305836, 1489880, 1585658, 1632295, 1865480, 2611672, 3171316, 3264590, 3964145, 5549803, 6342632, 6529180, 7928290, 11099606, 13058360, 15856580, 22199212, 27749015, 31713160, 44398424, 55498030, 110996060, 221992120]

約数ペア:

[(1, 221992120), (2, 110996060), (4, 55498030), (5, 44398424), (7, 31713160), (8, 27749015), (10, 22199212), (14, 15856580), (17, 13058360), (20, 11099606), (28, 7928290), (34, 6529180), (35, 6342632), (40, 5549803), (56, 3964145), (68, 3264590), (70, 3171316), (85, 2611672), (119, 1865480), (136, 1632295), (140, 1585658), (149, 1489880), (170, 1305836), (238, 932740), (280, 792829), (298, 744940), (313, 709240), (340, 652918), (476, 466370), (595, 373096), (596, 372470), (626, 354620), (680, 326459), (745, 297976), (952, 233185), (1043, 212840), (1190, 186548), (1192, 186235), (1252, 177310), (1490, 148988), (1565, 141848), (2086, 106420), (2191, 101320), (2380, 93274), (2504, 88655), (2533, 87640), (2980, 74494), (3130, 70924), (4172, 53210), (4382, 50660), (4760, 46637), (5066, 43820), (5215, 42568), (5321, 41720), (5960, 37247), (6260, 35462), (8344, 26605), (8764, 25330), (10132, 21910), (10430, 21284), (10642, 20860), (10955, 20264), (12520, 17731), (12665, 17528)]