228517120

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{443}}^1$

素因数の和:508

約数の個数: 144

約数和(自身を含む): 609864192

約数和(自身を除く): 381347072

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 128, 130, 155, 160, 208, 248, 256, 260, 310, 320, 403, 416, 443, 496, 520, 620, 640, 806, 832, 886, 992, 1040, 1240, 1280, 1612, 1664, 1772, 1984, 2015, 2080, 2215, 2480, 3224, 3328, 3544, 3968, 4030, 4160, 4430, 4960, 5759, 6448, 7088, 7936, 8060, 8320, 8860, 9920, 11518, 12896, 13733, 14176, 16120, 16640, 17720, 19840, 23036, 25792, 27466, 28352, 28795, 32240, 35440, 39680, 46072, 51584, 54932, 56704, 57590, 64480, 68665, 70880, 92144, 103168, 109864, 113408, 115180, 128960, 137330, 141760, 178529, 184288, 219728, 230360, 257920, 274660, 283520, 357058, 368576, 439456, 460720, 515840, 549320, 567040, 714116, 737152, 878912, 892645, 921440, 1098640, 1428232, 1474304, 1757824, 1785290, 1842880, 2197280, 2856464, 3515648, 3570580, 3685760, 4394560, 5712928, 7141160, 7371520, 8789120, 11425856, 14282320, 17578240, 22851712, 28564640, 45703424, 57129280, 114258560, 228517120]

約数ペア:

[(1, 228517120), (2, 114258560), (4, 57129280), (5, 45703424), (8, 28564640), (10, 22851712), (13, 17578240), (16, 14282320), (20, 11425856), (26, 8789120), (31, 7371520), (32, 7141160), (40, 5712928), (52, 4394560), (62, 3685760), (64, 3570580), (65, 3515648), (80, 2856464), (104, 2197280), (124, 1842880), (128, 1785290), (130, 1757824), (155, 1474304), (160, 1428232), (208, 1098640), (248, 921440), (256, 892645), (260, 878912), (310, 737152), (320, 714116), (403, 567040), (416, 549320), (443, 515840), (496, 460720), (520, 439456), (620, 368576), (640, 357058), (806, 283520), (832, 274660), (886, 257920), (992, 230360), (1040, 219728), (1240, 184288), (1280, 178529), (1612, 141760), (1664, 137330), (1772, 128960), (1984, 115180), (2015, 113408), (2080, 109864), (2215, 103168), (2480, 92144), (3224, 70880), (3328, 68665), (3544, 64480), (3968, 57590), (4030, 56704), (4160, 54932), (4430, 51584), (4960, 46072), (5759, 39680), (6448, 35440), (7088, 32240), (7936, 28795), (8060, 28352), (8320, 27466), (8860, 25792), (9920, 23036), (11518, 19840), (12896, 17720), (13733, 16640), (14176, 16120)]