178421120

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{31}}^1$

素因数の和:113

約数の個数: 192

約数和(自身を含む): 487347840

約数和(自身を除く): 308926720

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 23, 31, 32, 34, 40, 46, 62, 64, 68, 80, 85, 92, 115, 124, 128, 136, 155, 160, 170, 184, 230, 248, 272, 310, 320, 340, 368, 391, 460, 496, 527, 529, 544, 620, 640, 680, 713, 736, 782, 920, 992, 1054, 1058, 1088, 1240, 1360, 1426, 1472, 1564, 1840, 1955, 1984, 2108, 2116, 2176, 2480, 2635, 2645, 2720, 2852, 2944, 3128, 3565, 3680, 3910, 3968, 4216, 4232, 4960, 5270, 5290, 5440, 5704, 6256, 7130, 7360, 7820, 8432, 8464, 8993, 9920, 10540, 10580, 10880, 11408, 12121, 12512, 14260, 14720, 15640, 16399, 16864, 16928, 17986, 19840, 21080, 21160, 22816, 24242, 25024, 28520, 31280, 32798, 33728, 33856, 35972, 42160, 42320, 44965, 45632, 48484, 50048, 57040, 60605, 62560, 65596, 67456, 67712, 71944, 81995, 84320, 84640, 89930, 91264, 96968, 114080, 121210, 125120, 131192, 143888, 163990, 168640, 169280, 179860, 193936, 228160, 242420, 250240, 262384, 278783, 287776, 327980, 337280, 338560, 359720, 387872, 456320, 484840, 524768, 557566, 575552, 655960, 719440, 775744, 969680, 1049536, 1115132, 1151104, 1311920, 1393915, 1438880, 1551488, 1939360, 2099072, 2230264, 2623840, 2787830, 2877760, 3878720, 4460528, 5247680, 5575660, 5755520, 7757440, 8921056, 10495360, 11151320, 17842112, 22302640, 35684224, 44605280, 89210560, 178421120]

約数ペア:

[(1, 178421120), (2, 89210560), (4, 44605280), (5, 35684224), (8, 22302640), (10, 17842112), (16, 11151320), (17, 10495360), (20, 8921056), (23, 7757440), (31, 5755520), (32, 5575660), (34, 5247680), (40, 4460528), (46, 3878720), (62, 2877760), (64, 2787830), (68, 2623840), (80, 2230264), (85, 2099072), (92, 1939360), (115, 1551488), (124, 1438880), (128, 1393915), (136, 1311920), (155, 1151104), (160, 1115132), (170, 1049536), (184, 969680), (230, 775744), (248, 719440), (272, 655960), (310, 575552), (320, 557566), (340, 524768), (368, 484840), (391, 456320), (460, 387872), (496, 359720), (527, 338560), (529, 337280), (544, 327980), (620, 287776), (640, 278783), (680, 262384), (713, 250240), (736, 242420), (782, 228160), (920, 193936), (992, 179860), (1054, 169280), (1058, 168640), (1088, 163990), (1240, 143888), (1360, 131192), (1426, 125120), (1472, 121210), (1564, 114080), (1840, 96968), (1955, 91264), (1984, 89930), (2108, 84640), (2116, 84320), (2176, 81995), (2480, 71944), (2635, 67712), (2645, 67456), (2720, 65596), (2852, 62560), (2944, 60605), (3128, 57040), (3565, 50048), (3680, 48484), (3910, 45632), (3968, 44965), (4216, 42320), (4232, 42160), (4960, 35972), (5270, 33856), (5290, 33728), (5440, 32798), (5704, 31280), (6256, 28520), (7130, 25024), (7360, 24242), (7820, 22816), (8432, 21160), (8464, 21080), (8993, 19840), (9920, 17986), (10540, 16928), (10580, 16864), (10880, 16399), (11408, 15640), (12121, 14720), (12512, 14260)]