18641520

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1523}}^1$

素因数の和:1559

約数の個数: 120

約数和(自身を含む): 66330576

約数和(自身を除く): 47689056

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 30, 34, 36, 40, 45, 48, 51, 60, 68, 72, 80, 85, 90, 102, 120, 136, 144, 153, 170, 180, 204, 240, 255, 272, 306, 340, 360, 408, 510, 612, 680, 720, 765, 816, 1020, 1224, 1360, 1523, 1530, 2040, 2448, 3046, 3060, 4080, 4569, 6092, 6120, 7615, 9138, 12184, 12240, 13707, 15230, 18276, 22845, 24368, 25891, 27414, 30460, 36552, 45690, 51782, 54828, 60920, 68535, 73104, 77673, 91380, 103564, 109656, 121840, 129455, 137070, 155346, 182760, 207128, 219312, 233019, 258910, 274140, 310692, 365520, 388365, 414256, 466038, 517820, 548280, 621384, 776730, 932076, 1035640, 1096560, 1165095, 1242768, 1553460, 1864152, 2071280, 2330190, 3106920, 3728304, 4660380, 6213840, 9320760, 18641520]

約数ペア:

[(1, 18641520), (2, 9320760), (3, 6213840), (4, 4660380), (5, 3728304), (6, 3106920), (8, 2330190), (9, 2071280), (10, 1864152), (12, 1553460), (15, 1242768), (16, 1165095), (17, 1096560), (18, 1035640), (20, 932076), (24, 776730), (30, 621384), (34, 548280), (36, 517820), (40, 466038), (45, 414256), (48, 388365), (51, 365520), (60, 310692), (68, 274140), (72, 258910), (80, 233019), (85, 219312), (90, 207128), (102, 182760), (120, 155346), (136, 137070), (144, 129455), (153, 121840), (170, 109656), (180, 103564), (204, 91380), (240, 77673), (255, 73104), (272, 68535), (306, 60920), (340, 54828), (360, 51782), (408, 45690), (510, 36552), (612, 30460), (680, 27414), (720, 25891), (765, 24368), (816, 22845), (1020, 18276), (1224, 15230), (1360, 13707), (1523, 12240), (1530, 12184), (2040, 9138), (2448, 7615), (3046, 6120), (3060, 6092), (4080, 4569)]