257500500

素因数分解:

$2^2\times 3^1\times 5^3\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1$

素因数の和:195

約数の個数: 192

約数和(自身を含む): 792529920

約数和(自身を除く): 535029420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 41, 50, 53, 60, 75, 79, 82, 100, 106, 123, 125, 150, 158, 159, 164, 205, 212, 237, 246, 250, 265, 300, 316, 318, 375, 395, 410, 474, 492, 500, 530, 615, 636, 750, 790, 795, 820, 948, 1025, 1060, 1185, 1230, 1325, 1500, 1580, 1590, 1975, 2050, 2173, 2370, 2460, 2650, 3075, 3180, 3239, 3950, 3975, 4100, 4187, 4346, 4740, 5125, 5300, 5925, 6150, 6478, 6519, 6625, 7900, 7950, 8374, 8692, 9717, 9875, 10250, 10865, 11850, 12300, 12561, 12956, 13038, 13250, 15375, 15900, 16195, 16748, 19434, 19750, 19875, 20500, 20935, 21730, 23700, 25122, 26076, 26500, 29625, 30750, 32390, 32595, 38868, 39500, 39750, 41870, 43460, 48585, 50244, 54325, 59250, 61500, 62805, 64780, 65190, 79500, 80975, 83740, 97170, 104675, 108650, 118500, 125610, 130380, 161950, 162975, 171667, 194340, 209350, 217300, 242925, 251220, 271625, 314025, 323900, 325950, 343334, 404875, 418700, 485850, 515001, 523375, 543250, 628050, 651900, 686668, 809750, 814875, 858335, 971700, 1030002, 1046750, 1086500, 1214625, 1256100, 1570125, 1619500, 1629750, 1716670, 2060004, 2093500, 2429250, 2575005, 3140250, 3259500, 3433340, 4291675, 4858500, 5150010, 6280500, 8583350, 10300020, 12875025, 17166700, 21458375, 25750050, 42916750, 51500100, 64375125, 85833500, 128750250, 257500500]

約数ペア:

[(1, 257500500), (2, 128750250), (3, 85833500), (4, 64375125), (5, 51500100), (6, 42916750), (10, 25750050), (12, 21458375), (15, 17166700), (20, 12875025), (25, 10300020), (30, 8583350), (41, 6280500), (50, 5150010), (53, 4858500), (60, 4291675), (75, 3433340), (79, 3259500), (82, 3140250), (100, 2575005), (106, 2429250), (123, 2093500), (125, 2060004), (150, 1716670), (158, 1629750), (159, 1619500), (164, 1570125), (205, 1256100), (212, 1214625), (237, 1086500), (246, 1046750), (250, 1030002), (265, 971700), (300, 858335), (316, 814875), (318, 809750), (375, 686668), (395, 651900), (410, 628050), (474, 543250), (492, 523375), (500, 515001), (530, 485850), (615, 418700), (636, 404875), (750, 343334), (790, 325950), (795, 323900), (820, 314025), (948, 271625), (1025, 251220), (1060, 242925), (1185, 217300), (1230, 209350), (1325, 194340), (1500, 171667), (1580, 162975), (1590, 161950), (1975, 130380), (2050, 125610), (2173, 118500), (2370, 108650), (2460, 104675), (2650, 97170), (3075, 83740), (3180, 80975), (3239, 79500), (3950, 65190), (3975, 64780), (4100, 62805), (4187, 61500), (4346, 59250), (4740, 54325), (5125, 50244), (5300, 48585), (5925, 43460), (6150, 41870), (6478, 39750), (6519, 39500), (6625, 38868), (7900, 32595), (7950, 32390), (8374, 30750), (8692, 29625), (9717, 26500), (9875, 26076), (10250, 25122), (10865, 23700), (11850, 21730), (12300, 20935), (12561, 20500), (12956, 19875), (13038, 19750), (13250, 19434), (15375, 16748), (15900, 16195)]