77659960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{389}}^1$

素因数の和:461

約数の個数: 128

約数和(自身を含む): 215654400

約数和(自身を除く): 137994440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 31, 35, 40, 46, 56, 62, 70, 92, 115, 124, 140, 155, 161, 184, 217, 230, 248, 280, 310, 322, 389, 434, 460, 620, 644, 713, 778, 805, 868, 920, 1085, 1240, 1288, 1426, 1556, 1610, 1736, 1945, 2170, 2723, 2852, 3112, 3220, 3565, 3890, 4340, 4991, 5446, 5704, 6440, 7130, 7780, 8680, 8947, 9982, 10892, 12059, 13615, 14260, 15560, 17894, 19964, 21784, 24118, 24955, 27230, 28520, 35788, 39928, 44735, 48236, 49910, 54460, 60295, 62629, 71576, 84413, 89470, 96472, 99820, 108920, 120590, 125258, 168826, 178940, 199640, 241180, 250516, 277357, 313145, 337652, 357880, 422065, 482360, 501032, 554714, 626290, 675304, 844130, 1109428, 1252580, 1386785, 1688260, 1941499, 2218856, 2505160, 2773570, 3376520, 3882998, 5547140, 7765996, 9707495, 11094280, 15531992, 19414990, 38829980, 77659960]

約数ペア:

[(1, 77659960), (2, 38829980), (4, 19414990), (5, 15531992), (7, 11094280), (8, 9707495), (10, 7765996), (14, 5547140), (20, 3882998), (23, 3376520), (28, 2773570), (31, 2505160), (35, 2218856), (40, 1941499), (46, 1688260), (56, 1386785), (62, 1252580), (70, 1109428), (92, 844130), (115, 675304), (124, 626290), (140, 554714), (155, 501032), (161, 482360), (184, 422065), (217, 357880), (230, 337652), (248, 313145), (280, 277357), (310, 250516), (322, 241180), (389, 199640), (434, 178940), (460, 168826), (620, 125258), (644, 120590), (713, 108920), (778, 99820), (805, 96472), (868, 89470), (920, 84413), (1085, 71576), (1240, 62629), (1288, 60295), (1426, 54460), (1556, 49910), (1610, 48236), (1736, 44735), (1945, 39928), (2170, 35788), (2723, 28520), (2852, 27230), (3112, 24955), (3220, 24118), (3565, 21784), (3890, 19964), (4340, 17894), (4991, 15560), (5446, 14260), (5704, 13615), (6440, 12059), (7130, 10892), (7780, 9982), (8680, 8947)]