20836560

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{5107}}^1$

素因数の和:5140

約数の個数: 80

約数和(自身を含む): 68406336

約数和(自身を除く): 47569776

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 34, 40, 48, 51, 60, 68, 80, 85, 102, 120, 136, 170, 204, 240, 255, 272, 340, 408, 510, 680, 816, 1020, 1360, 2040, 4080, 5107, 10214, 15321, 20428, 25535, 30642, 40856, 51070, 61284, 76605, 81712, 86819, 102140, 122568, 153210, 173638, 204280, 245136, 260457, 306420, 347276, 408560, 434095, 520914, 612840, 694552, 868190, 1041828, 1225680, 1302285, 1389104, 1736380, 2083656, 2604570, 3472760, 4167312, 5209140, 6945520, 10418280, 20836560]

約数ペア:

[(1, 20836560), (2, 10418280), (3, 6945520), (4, 5209140), (5, 4167312), (6, 3472760), (8, 2604570), (10, 2083656), (12, 1736380), (15, 1389104), (16, 1302285), (17, 1225680), (20, 1041828), (24, 868190), (30, 694552), (34, 612840), (40, 520914), (48, 434095), (51, 408560), (60, 347276), (68, 306420), (80, 260457), (85, 245136), (102, 204280), (120, 173638), (136, 153210), (170, 122568), (204, 102140), (240, 86819), (255, 81712), (272, 76605), (340, 61284), (408, 51070), (510, 40856), (680, 30642), (816, 25535), (1020, 20428), (1360, 15321), (2040, 10214), (4080, 5107)]