77243920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{257}}^1$

素因数の和:317

約数の個数: 120

約数和(自身を含む): 206252424

約数和(自身を除く): 129008504

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 34, 40, 52, 65, 68, 80, 85, 104, 130, 136, 170, 208, 221, 257, 260, 272, 289, 340, 442, 514, 520, 578, 680, 884, 1028, 1040, 1105, 1156, 1285, 1360, 1445, 1768, 2056, 2210, 2312, 2570, 2890, 3341, 3536, 3757, 4112, 4369, 4420, 4624, 5140, 5780, 6682, 7514, 8738, 8840, 10280, 11560, 13364, 15028, 16705, 17476, 17680, 18785, 20560, 21845, 23120, 26728, 30056, 33410, 34952, 37570, 43690, 53456, 56797, 60112, 66820, 69904, 74273, 75140, 87380, 113594, 133640, 148546, 150280, 174760, 227188, 267280, 283985, 297092, 300560, 349520, 371365, 454376, 567970, 594184, 742730, 908752, 965549, 1135940, 1188368, 1485460, 1931098, 2271880, 2970920, 3862196, 4543760, 4827745, 5941840, 7724392, 9655490, 15448784, 19310980, 38621960, 77243920]

約数ペア:

[(1, 77243920), (2, 38621960), (4, 19310980), (5, 15448784), (8, 9655490), (10, 7724392), (13, 5941840), (16, 4827745), (17, 4543760), (20, 3862196), (26, 2970920), (34, 2271880), (40, 1931098), (52, 1485460), (65, 1188368), (68, 1135940), (80, 965549), (85, 908752), (104, 742730), (130, 594184), (136, 567970), (170, 454376), (208, 371365), (221, 349520), (257, 300560), (260, 297092), (272, 283985), (289, 267280), (340, 227188), (442, 174760), (514, 150280), (520, 148546), (578, 133640), (680, 113594), (884, 87380), (1028, 75140), (1040, 74273), (1105, 69904), (1156, 66820), (1285, 60112), (1360, 56797), (1445, 53456), (1768, 43690), (2056, 37570), (2210, 34952), (2312, 33410), (2570, 30056), (2890, 26728), (3341, 23120), (3536, 21845), (3757, 20560), (4112, 18785), (4369, 17680), (4420, 17476), (4624, 16705), (5140, 15028), (5780, 13364), (6682, 11560), (7514, 10280), (8738, 8840)]