220800080

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{907}}^1$

素因数の和:1116

約数の個数: 80

約数和(自身を含む): 547197120

約数和(自身を除く): 326397040

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 179, 272, 340, 358, 680, 716, 895, 907, 1360, 1432, 1790, 1814, 2864, 3043, 3580, 3628, 4535, 6086, 7160, 7256, 9070, 12172, 14320, 14512, 15215, 15419, 18140, 24344, 30430, 30838, 36280, 48688, 60860, 61676, 72560, 77095, 121720, 123352, 154190, 162353, 243440, 246704, 308380, 324706, 616760, 649412, 811765, 1233520, 1298824, 1623530, 2597648, 2760001, 3247060, 5520002, 6494120, 11040004, 12988240, 13800005, 22080008, 27600010, 44160016, 55200020, 110400040, 220800080]

約数ペア:

[(1, 220800080), (2, 110400040), (4, 55200020), (5, 44160016), (8, 27600010), (10, 22080008), (16, 13800005), (17, 12988240), (20, 11040004), (34, 6494120), (40, 5520002), (68, 3247060), (80, 2760001), (85, 2597648), (136, 1623530), (170, 1298824), (179, 1233520), (272, 811765), (340, 649412), (358, 616760), (680, 324706), (716, 308380), (895, 246704), (907, 243440), (1360, 162353), (1432, 154190), (1790, 123352), (1814, 121720), (2864, 77095), (3043, 72560), (3580, 61676), (3628, 60860), (4535, 48688), (6086, 36280), (7160, 30838), (7256, 30430), (9070, 24344), (12172, 18140), (14320, 15419), (14512, 15215)]