1287720

素因数分解:

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

素因数の和:104

約数の個数: 144

約数和(自身を含む): 4935060

約数和(自身を除く): 3647340

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, 49, 56, 60, 63, 70, 72, 73, 84, 90, 98, 105, 120, 126, 140, 146, 147, 168, 180, 196, 210, 219, 245, 252, 280, 292, 294, 315, 360, 365, 392, 420, 438, 441, 490, 504, 511, 584, 588, 630, 657, 730, 735, 840, 876, 882, 980, 1022, 1095, 1176, 1260, 1314, 1460, 1470, 1533, 1752, 1764, 1960, 2044, 2190, 2205, 2520, 2555, 2628, 2920, 2940, 3066, 3285, 3528, 3577, 4088, 4380, 4410, 4599, 5110, 5256, 5880, 6132, 6570, 7154, 7665, 8760, 8820, 9198, 10220, 10731, 12264, 13140, 14308, 15330, 17640, 17885, 18396, 20440, 21462, 22995, 26280, 28616, 30660, 32193, 35770, 36792, 42924, 45990, 53655, 61320, 64386, 71540, 85848, 91980, 107310, 128772, 143080, 160965, 183960, 214620, 257544, 321930, 429240, 643860, 1287720]

約数ペア:

[(1, 1287720), (2, 643860), (3, 429240), (4, 321930), (5, 257544), (6, 214620), (7, 183960), (8, 160965), (9, 143080), (10, 128772), (12, 107310), (14, 91980), (15, 85848), (18, 71540), (20, 64386), (21, 61320), (24, 53655), (28, 45990), (30, 42924), (35, 36792), (36, 35770), (40, 32193), (42, 30660), (45, 28616), (49, 26280), (56, 22995), (60, 21462), (63, 20440), (70, 18396), (72, 17885), (73, 17640), (84, 15330), (90, 14308), (98, 13140), (105, 12264), (120, 10731), (126, 10220), (140, 9198), (146, 8820), (147, 8760), (168, 7665), (180, 7154), (196, 6570), (210, 6132), (219, 5880), (245, 5256), (252, 5110), (280, 4599), (292, 4410), (294, 4380), (315, 4088), (360, 3577), (365, 3528), (392, 3285), (420, 3066), (438, 2940), (441, 2920), (490, 2628), (504, 2555), (511, 2520), (584, 2205), (588, 2190), (630, 2044), (657, 1960), (730, 1764), (735, 1752), (840, 1533), (876, 1470), (882, 1460), (980, 1314), (1022, 1260), (1095, 1176)]