20787480

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1$

素因数の和:210

約数の個数: 192

約数和(自身を含む): 78960960

約数和(自身を除く): 58173480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 72, 73, 84, 90, 105, 113, 120, 126, 140, 146, 168, 180, 210, 219, 226, 252, 280, 292, 315, 339, 360, 365, 420, 438, 452, 504, 511, 565, 584, 630, 657, 678, 730, 791, 840, 876, 904, 1017, 1022, 1095, 1130, 1260, 1314, 1356, 1460, 1533, 1582, 1695, 1752, 2034, 2044, 2190, 2260, 2373, 2520, 2555, 2628, 2712, 2920, 3066, 3164, 3285, 3390, 3955, 4068, 4088, 4380, 4520, 4599, 4746, 5085, 5110, 5256, 6132, 6328, 6570, 6780, 7119, 7665, 7910, 8136, 8249, 8760, 9198, 9492, 10170, 10220, 11865, 12264, 13140, 13560, 14238, 15330, 15820, 16498, 18396, 18984, 20340, 20440, 22995, 23730, 24747, 26280, 28476, 30660, 31640, 32996, 35595, 36792, 40680, 41245, 45990, 47460, 49494, 56952, 57743, 61320, 65992, 71190, 74241, 82490, 91980, 94920, 98988, 115486, 123735, 142380, 148482, 164980, 173229, 183960, 197976, 230972, 247470, 284760, 288715, 296964, 329960, 346458, 371205, 461944, 494940, 519687, 577430, 593928, 692916, 742410, 866145, 989880, 1039374, 1154860, 1385832, 1484820, 1732290, 2078748, 2309720, 2598435, 2969640, 3464580, 4157496, 5196870, 6929160, 10393740, 20787480]

約数ペア:

[(1, 20787480), (2, 10393740), (3, 6929160), (4, 5196870), (5, 4157496), (6, 3464580), (7, 2969640), (8, 2598435), (9, 2309720), (10, 2078748), (12, 1732290), (14, 1484820), (15, 1385832), (18, 1154860), (20, 1039374), (21, 989880), (24, 866145), (28, 742410), (30, 692916), (35, 593928), (36, 577430), (40, 519687), (42, 494940), (45, 461944), (56, 371205), (60, 346458), (63, 329960), (70, 296964), (72, 288715), (73, 284760), (84, 247470), (90, 230972), (105, 197976), (113, 183960), (120, 173229), (126, 164980), (140, 148482), (146, 142380), (168, 123735), (180, 115486), (210, 98988), (219, 94920), (226, 91980), (252, 82490), (280, 74241), (292, 71190), (315, 65992), (339, 61320), (360, 57743), (365, 56952), (420, 49494), (438, 47460), (452, 45990), (504, 41245), (511, 40680), (565, 36792), (584, 35595), (630, 32996), (657, 31640), (678, 30660), (730, 28476), (791, 26280), (840, 24747), (876, 23730), (904, 22995), (1017, 20440), (1022, 20340), (1095, 18984), (1130, 18396), (1260, 16498), (1314, 15820), (1356, 15330), (1460, 14238), (1533, 13560), (1582, 13140), (1695, 12264), (1752, 11865), (2034, 10220), (2044, 10170), (2190, 9492), (2260, 9198), (2373, 8760), (2520, 8249), (2555, 8136), (2628, 7910), (2712, 7665), (2920, 7119), (3066, 6780), (3164, 6570), (3285, 6328), (3390, 6132), (3955, 5256), (4068, 5110), (4088, 5085), (4380, 4746), (4520, 4599)]