19725510

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1$

素因数の和:166

約数の個数: 128

約数和(自身を含む): 58060800

約数和(自身を除く): 38335290

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 29, 30, 35, 41, 42, 58, 70, 79, 82, 87, 105, 123, 145, 158, 174, 203, 205, 210, 237, 246, 287, 290, 395, 406, 410, 435, 474, 553, 574, 609, 615, 790, 861, 870, 1015, 1106, 1185, 1189, 1218, 1230, 1435, 1659, 1722, 2030, 2291, 2370, 2378, 2765, 2870, 3045, 3239, 3318, 3567, 4305, 4582, 5530, 5945, 6090, 6478, 6873, 7134, 8295, 8323, 8610, 9717, 11455, 11890, 13746, 16037, 16195, 16590, 16646, 17835, 19434, 22673, 22910, 24969, 32074, 32390, 34365, 35670, 41615, 45346, 48111, 48585, 49938, 68019, 68730, 80185, 83230, 93931, 96222, 97170, 113365, 124845, 136038, 160370, 187862, 226730, 240555, 249690, 281793, 340095, 469655, 481110, 563586, 657517, 680190, 939310, 1315034, 1408965, 1972551, 2817930, 3287585, 3945102, 6575170, 9862755, 19725510]

約数ペア:

[(1, 19725510), (2, 9862755), (3, 6575170), (5, 3945102), (6, 3287585), (7, 2817930), (10, 1972551), (14, 1408965), (15, 1315034), (21, 939310), (29, 680190), (30, 657517), (35, 563586), (41, 481110), (42, 469655), (58, 340095), (70, 281793), (79, 249690), (82, 240555), (87, 226730), (105, 187862), (123, 160370), (145, 136038), (158, 124845), (174, 113365), (203, 97170), (205, 96222), (210, 93931), (237, 83230), (246, 80185), (287, 68730), (290, 68019), (395, 49938), (406, 48585), (410, 48111), (435, 45346), (474, 41615), (553, 35670), (574, 34365), (609, 32390), (615, 32074), (790, 24969), (861, 22910), (870, 22673), (1015, 19434), (1106, 17835), (1185, 16646), (1189, 16590), (1218, 16195), (1230, 16037), (1435, 13746), (1659, 11890), (1722, 11455), (2030, 9717), (2291, 8610), (2370, 8323), (2378, 8295), (2765, 7134), (2870, 6873), (3045, 6478), (3239, 6090), (3318, 5945), (3567, 5530), (4305, 4582)]