77824740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{257}}^1$

素因数の和:386

約数の個数: 144

約数和(自身を含む): 256943232

約数和(自身を除く): 179118492

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 103, 105, 140, 147, 196, 206, 210, 245, 257, 294, 309, 412, 420, 490, 514, 515, 588, 618, 721, 735, 771, 980, 1028, 1030, 1236, 1285, 1442, 1470, 1542, 1545, 1799, 2060, 2163, 2570, 2884, 2940, 3084, 3090, 3598, 3605, 3855, 4326, 5047, 5140, 5397, 6180, 7196, 7210, 7710, 8652, 8995, 10094, 10794, 10815, 12593, 14420, 15141, 15420, 17990, 20188, 21588, 21630, 25186, 25235, 26471, 26985, 30282, 35980, 37779, 43260, 50372, 50470, 52942, 53970, 60564, 62965, 75558, 75705, 79413, 100940, 105884, 107940, 125930, 132355, 151116, 151410, 158826, 185297, 188895, 251860, 264710, 302820, 317652, 370594, 377790, 397065, 529420, 555891, 741188, 755580, 794130, 926485, 1111782, 1297079, 1588260, 1852970, 2223564, 2594158, 2779455, 3705940, 3891237, 5188316, 5558910, 6485395, 7782474, 11117820, 12970790, 15564948, 19456185, 25941580, 38912370, 77824740]

約数ペア:

[(1, 77824740), (2, 38912370), (3, 25941580), (4, 19456185), (5, 15564948), (6, 12970790), (7, 11117820), (10, 7782474), (12, 6485395), (14, 5558910), (15, 5188316), (20, 3891237), (21, 3705940), (28, 2779455), (30, 2594158), (35, 2223564), (42, 1852970), (49, 1588260), (60, 1297079), (70, 1111782), (84, 926485), (98, 794130), (103, 755580), (105, 741188), (140, 555891), (147, 529420), (196, 397065), (206, 377790), (210, 370594), (245, 317652), (257, 302820), (294, 264710), (309, 251860), (412, 188895), (420, 185297), (490, 158826), (514, 151410), (515, 151116), (588, 132355), (618, 125930), (721, 107940), (735, 105884), (771, 100940), (980, 79413), (1028, 75705), (1030, 75558), (1236, 62965), (1285, 60564), (1442, 53970), (1470, 52942), (1542, 50470), (1545, 50372), (1799, 43260), (2060, 37779), (2163, 35980), (2570, 30282), (2884, 26985), (2940, 26471), (3084, 25235), (3090, 25186), (3598, 21630), (3605, 21588), (3855, 20188), (4326, 17990), (5047, 15420), (5140, 15141), (5397, 14420), (6180, 12593), (7196, 10815), (7210, 10794), (7710, 10094), (8652, 8995)]