18807720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1$

素因数の和:219

約数の個数: 128

約数和(自身を含む): 60739200

約数和(自身を除く): 41931480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 73, 76, 95, 113, 114, 120, 146, 152, 190, 219, 226, 228, 285, 292, 339, 365, 380, 438, 452, 456, 565, 570, 584, 678, 730, 760, 876, 904, 1095, 1130, 1140, 1356, 1387, 1460, 1695, 1752, 2147, 2190, 2260, 2280, 2712, 2774, 2920, 3390, 4161, 4294, 4380, 4520, 5548, 6441, 6780, 6935, 8249, 8322, 8588, 8760, 10735, 11096, 12882, 13560, 13870, 16498, 16644, 17176, 20805, 21470, 24747, 25764, 27740, 32205, 32996, 33288, 41245, 41610, 42940, 49494, 51528, 55480, 64410, 65992, 82490, 83220, 85880, 98988, 123735, 128820, 156731, 164980, 166440, 197976, 247470, 257640, 313462, 329960, 470193, 494940, 626924, 783655, 940386, 989880, 1253848, 1567310, 1880772, 2350965, 3134620, 3761544, 4701930, 6269240, 9403860, 18807720]

約数ペア:

[(1, 18807720), (2, 9403860), (3, 6269240), (4, 4701930), (5, 3761544), (6, 3134620), (8, 2350965), (10, 1880772), (12, 1567310), (15, 1253848), (19, 989880), (20, 940386), (24, 783655), (30, 626924), (38, 494940), (40, 470193), (57, 329960), (60, 313462), (73, 257640), (76, 247470), (95, 197976), (113, 166440), (114, 164980), (120, 156731), (146, 128820), (152, 123735), (190, 98988), (219, 85880), (226, 83220), (228, 82490), (285, 65992), (292, 64410), (339, 55480), (365, 51528), (380, 49494), (438, 42940), (452, 41610), (456, 41245), (565, 33288), (570, 32996), (584, 32205), (678, 27740), (730, 25764), (760, 24747), (876, 21470), (904, 20805), (1095, 17176), (1130, 16644), (1140, 16498), (1356, 13870), (1387, 13560), (1460, 12882), (1695, 11096), (1752, 10735), (2147, 8760), (2190, 8588), (2260, 8322), (2280, 8249), (2712, 6935), (2774, 6780), (2920, 6441), (3390, 5548), (4161, 4520), (4294, 4380)]