258505000

素因数分解:

$2^3\times 5^4\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1$

素因数の和:177

約数の個数: 160

約数和(自身を含む): 675065160

約数和(自身を除く): 416560160

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 41, 50, 52, 65, 82, 97, 100, 104, 125, 130, 164, 194, 200, 205, 250, 260, 325, 328, 388, 410, 485, 500, 520, 533, 625, 650, 776, 820, 970, 1000, 1025, 1066, 1250, 1261, 1300, 1625, 1640, 1940, 2050, 2132, 2425, 2500, 2522, 2600, 2665, 3250, 3880, 3977, 4100, 4264, 4850, 5000, 5044, 5125, 5330, 6305, 6500, 7954, 8125, 8200, 9700, 10088, 10250, 10660, 12125, 12610, 13000, 13325, 15908, 16250, 19400, 19885, 20500, 21320, 24250, 25220, 25625, 26650, 31525, 31816, 32500, 39770, 41000, 48500, 50440, 51250, 51701, 53300, 60625, 63050, 65000, 66625, 79540, 97000, 99425, 102500, 103402, 106600, 121250, 126100, 133250, 157625, 159080, 198850, 205000, 206804, 242500, 252200, 258505, 266500, 315250, 333125, 397700, 413608, 485000, 497125, 517010, 533000, 630500, 666250, 788125, 795400, 994250, 1034020, 1261000, 1292525, 1332500, 1576250, 1988500, 2068040, 2485625, 2585050, 2665000, 3152500, 3977000, 4971250, 5170100, 6305000, 6462625, 9942500, 10340200, 12925250, 19885000, 25850500, 32313125, 51701000, 64626250, 129252500, 258505000]

約数ペア:

[(1, 258505000), (2, 129252500), (4, 64626250), (5, 51701000), (8, 32313125), (10, 25850500), (13, 19885000), (20, 12925250), (25, 10340200), (26, 9942500), (40, 6462625), (41, 6305000), (50, 5170100), (52, 4971250), (65, 3977000), (82, 3152500), (97, 2665000), (100, 2585050), (104, 2485625), (125, 2068040), (130, 1988500), (164, 1576250), (194, 1332500), (200, 1292525), (205, 1261000), (250, 1034020), (260, 994250), (325, 795400), (328, 788125), (388, 666250), (410, 630500), (485, 533000), (500, 517010), (520, 497125), (533, 485000), (625, 413608), (650, 397700), (776, 333125), (820, 315250), (970, 266500), (1000, 258505), (1025, 252200), (1066, 242500), (1250, 206804), (1261, 205000), (1300, 198850), (1625, 159080), (1640, 157625), (1940, 133250), (2050, 126100), (2132, 121250), (2425, 106600), (2500, 103402), (2522, 102500), (2600, 99425), (2665, 97000), (3250, 79540), (3880, 66625), (3977, 65000), (4100, 63050), (4264, 60625), (4850, 53300), (5000, 51701), (5044, 51250), (5125, 50440), (5330, 48500), (6305, 41000), (6500, 39770), (7954, 32500), (8125, 31816), (8200, 31525), (9700, 26650), (10088, 25625), (10250, 25220), (10660, 24250), (12125, 21320), (12610, 20500), (13000, 19885), (13325, 19400), (15908, 16250)]