131440100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{331}}^1$

素因数の和:394

約数の個数: 108

約数和(自身を含む): 329385168

約数和(自身を除く): 197945068

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 25, 38, 44, 50, 55, 76, 95, 100, 110, 190, 209, 220, 275, 331, 361, 380, 418, 475, 550, 662, 722, 836, 950, 1045, 1100, 1324, 1444, 1655, 1805, 1900, 2090, 3310, 3610, 3641, 3971, 4180, 5225, 6289, 6620, 7220, 7282, 7942, 8275, 9025, 10450, 12578, 14564, 15884, 16550, 18050, 18205, 19855, 20900, 25156, 31445, 33100, 36100, 36410, 39710, 62890, 69179, 72820, 79420, 91025, 99275, 119491, 125780, 138358, 157225, 182050, 198550, 238982, 276716, 314450, 345895, 364100, 397100, 477964, 597455, 628900, 691790, 1194910, 1314401, 1383580, 1729475, 2389820, 2628802, 2987275, 3458950, 5257604, 5974550, 6572005, 6917900, 11949100, 13144010, 26288020, 32860025, 65720050, 131440100]

約数ペア:

[(1, 131440100), (2, 65720050), (4, 32860025), (5, 26288020), (10, 13144010), (11, 11949100), (19, 6917900), (20, 6572005), (22, 5974550), (25, 5257604), (38, 3458950), (44, 2987275), (50, 2628802), (55, 2389820), (76, 1729475), (95, 1383580), (100, 1314401), (110, 1194910), (190, 691790), (209, 628900), (220, 597455), (275, 477964), (331, 397100), (361, 364100), (380, 345895), (418, 314450), (475, 276716), (550, 238982), (662, 198550), (722, 182050), (836, 157225), (950, 138358), (1045, 125780), (1100, 119491), (1324, 99275), (1444, 91025), (1655, 79420), (1805, 72820), (1900, 69179), (2090, 62890), (3310, 39710), (3610, 36410), (3641, 36100), (3971, 33100), (4180, 31445), (5225, 25156), (6289, 20900), (6620, 19855), (7220, 18205), (7282, 18050), (7942, 16550), (8275, 15884), (9025, 14564), (10450, 12578)]