204787660

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^3\times {\mathrm{157}}^1$

素因数の和:213

約数の個数: 144

約数和(自身を含む): 553760928

約数和(自身を除く): 348973268

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 121, 140, 154, 157, 196, 220, 242, 245, 308, 314, 385, 484, 490, 539, 605, 628, 770, 785, 847, 980, 1078, 1099, 1210, 1331, 1540, 1570, 1694, 1727, 2156, 2198, 2420, 2662, 2695, 3140, 3388, 3454, 4235, 4396, 5324, 5390, 5495, 5929, 6655, 6908, 7693, 8470, 8635, 9317, 10780, 10990, 11858, 12089, 13310, 15386, 16940, 17270, 18634, 18997, 21980, 23716, 24178, 26620, 29645, 30772, 34540, 37268, 37994, 38465, 46585, 48356, 59290, 60445, 65219, 75988, 76930, 84623, 93170, 94985, 118580, 120890, 130438, 132979, 153860, 169246, 186340, 189970, 208967, 241780, 260876, 265958, 326095, 338492, 379940, 417934, 423115, 531916, 652190, 664895, 835868, 846230, 930853, 1044835, 1304380, 1329790, 1462769, 1692460, 1861706, 2089670, 2659580, 2925538, 3723412, 4179340, 4654265, 5851076, 7313845, 9308530, 10239383, 14627690, 18617060, 20478766, 29255380, 40957532, 51196915, 102393830, 204787660]

約数ペア:

[(1, 204787660), (2, 102393830), (4, 51196915), (5, 40957532), (7, 29255380), (10, 20478766), (11, 18617060), (14, 14627690), (20, 10239383), (22, 9308530), (28, 7313845), (35, 5851076), (44, 4654265), (49, 4179340), (55, 3723412), (70, 2925538), (77, 2659580), (98, 2089670), (110, 1861706), (121, 1692460), (140, 1462769), (154, 1329790), (157, 1304380), (196, 1044835), (220, 930853), (242, 846230), (245, 835868), (308, 664895), (314, 652190), (385, 531916), (484, 423115), (490, 417934), (539, 379940), (605, 338492), (628, 326095), (770, 265958), (785, 260876), (847, 241780), (980, 208967), (1078, 189970), (1099, 186340), (1210, 169246), (1331, 153860), (1540, 132979), (1570, 130438), (1694, 120890), (1727, 118580), (2156, 94985), (2198, 93170), (2420, 84623), (2662, 76930), (2695, 75988), (3140, 65219), (3388, 60445), (3454, 59290), (4235, 48356), (4396, 46585), (5324, 38465), (5390, 37994), (5495, 37268), (5929, 34540), (6655, 30772), (6908, 29645), (7693, 26620), (8470, 24178), (8635, 23716), (9317, 21980), (10780, 18997), (10990, 18634), (11858, 17270), (12089, 16940), (13310, 15386)]