1819595840

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^2\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:237

約数の個数: 168

約数和(自身を含む): 4597502616

約数和(自身を除く): 2777906776

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 61, 62, 64, 80, 97, 122, 124, 155, 160, 194, 244, 248, 305, 310, 320, 388, 485, 488, 496, 610, 620, 776, 961, 970, 976, 992, 1220, 1240, 1552, 1891, 1922, 1940, 1952, 1984, 2440, 2480, 3007, 3104, 3782, 3844, 3880, 3904, 4805, 4880, 4960, 5917, 6014, 6208, 7564, 7688, 7760, 9455, 9610, 9760, 9920, 11834, 12028, 15035, 15128, 15376, 15520, 18910, 19220, 19520, 23668, 24056, 29585, 30070, 30256, 30752, 31040, 37820, 38440, 47336, 48112, 58621, 59170, 60140, 60512, 61504, 75640, 76880, 93217, 94672, 96224, 117242, 118340, 120280, 121024, 151280, 153760, 183427, 186434, 189344, 192448, 234484, 236680, 240560, 293105, 302560, 307520, 366854, 372868, 378688, 466085, 468968, 473360, 481120, 586210, 605120, 733708, 745736, 917135, 932170, 937936, 946720, 962240, 1172420, 1467416, 1491472, 1834270, 1864340, 1875872, 1893440, 2344840, 2934832, 2982944, 3668540, 3728680, 3751744, 4689680, 5686237, 5869664, 5965888, 7337080, 7457360, 9379360, 11372474, 11739328, 14674160, 14914720, 18758720, 22744948, 28431185, 29348320, 29829440, 45489896, 56862370, 58696640, 90979792, 113724740, 181959584, 227449480, 363919168, 454898960, 909797920, 1819595840]

約数ペア:

[(1, 1819595840), (2, 909797920), (4, 454898960), (5, 363919168), (8, 227449480), (10, 181959584), (16, 113724740), (20, 90979792), (31, 58696640), (32, 56862370), (40, 45489896), (61, 29829440), (62, 29348320), (64, 28431185), (80, 22744948), (97, 18758720), (122, 14914720), (124, 14674160), (155, 11739328), (160, 11372474), (194, 9379360), (244, 7457360), (248, 7337080), (305, 5965888), (310, 5869664), (320, 5686237), (388, 4689680), (485, 3751744), (488, 3728680), (496, 3668540), (610, 2982944), (620, 2934832), (776, 2344840), (961, 1893440), (970, 1875872), (976, 1864340), (992, 1834270), (1220, 1491472), (1240, 1467416), (1552, 1172420), (1891, 962240), (1922, 946720), (1940, 937936), (1952, 932170), (1984, 917135), (2440, 745736), (2480, 733708), (3007, 605120), (3104, 586210), (3782, 481120), (3844, 473360), (3880, 468968), (3904, 466085), (4805, 378688), (4880, 372868), (4960, 366854), (5917, 307520), (6014, 302560), (6208, 293105), (7564, 240560), (7688, 236680), (7760, 234484), (9455, 192448), (9610, 189344), (9760, 186434), (9920, 183427), (11834, 153760), (12028, 151280), (15035, 121024), (15128, 120280), (15376, 118340), (15520, 117242), (18910, 96224), (19220, 94672), (19520, 93217), (23668, 76880), (24056, 75640), (29585, 61504), (30070, 60512), (30256, 60140), (30752, 59170), (31040, 58621), (37820, 48112), (38440, 47336)]