128858950

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{19}}^2\times {\mathrm{59}}^1$

素因数の和:131

約数の個数: 108

約数和(自身を含む): 282755340

約数和(自身を除く): 153896390

約数列:

[1, 2, 5, 10, 11, 19, 22, 25, 38, 50, 55, 59, 95, 110, 118, 121, 190, 209, 242, 275, 295, 361, 418, 475, 550, 590, 605, 649, 722, 950, 1045, 1121, 1210, 1298, 1475, 1805, 2090, 2242, 2299, 2950, 3025, 3245, 3610, 3971, 4598, 5225, 5605, 6050, 6490, 7139, 7942, 9025, 10450, 11210, 11495, 12331, 14278, 16225, 18050, 19855, 21299, 22990, 24662, 28025, 32450, 35695, 39710, 42598, 43681, 56050, 57475, 61655, 71390, 87362, 99275, 106495, 114950, 123310, 135641, 178475, 198550, 212990, 218405, 234289, 271282, 308275, 356950, 436810, 468578, 532475, 616550, 678205, 1064950, 1092025, 1171445, 1356410, 2184050, 2342890, 2577179, 3391025, 5154358, 5857225, 6782050, 11714450, 12885895, 25771790, 64429475, 128858950]

約数ペア:

[(1, 128858950), (2, 64429475), (5, 25771790), (10, 12885895), (11, 11714450), (19, 6782050), (22, 5857225), (25, 5154358), (38, 3391025), (50, 2577179), (55, 2342890), (59, 2184050), (95, 1356410), (110, 1171445), (118, 1092025), (121, 1064950), (190, 678205), (209, 616550), (242, 532475), (275, 468578), (295, 436810), (361, 356950), (418, 308275), (475, 271282), (550, 234289), (590, 218405), (605, 212990), (649, 198550), (722, 178475), (950, 135641), (1045, 123310), (1121, 114950), (1210, 106495), (1298, 99275), (1475, 87362), (1805, 71390), (2090, 61655), (2242, 57475), (2299, 56050), (2950, 43681), (3025, 42598), (3245, 39710), (3610, 35695), (3971, 32450), (4598, 28025), (5225, 24662), (5605, 22990), (6050, 21299), (6490, 19855), (7139, 18050), (7942, 16225), (9025, 14278), (10450, 12331), (11210, 11495)]