278137890

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{761}}^1$

素因数の和:936

約数の個数: 96

約数和(自身を含む): 753172992

約数和(自身を除く): 475035102

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 31, 45, 62, 90, 93, 131, 155, 186, 262, 279, 310, 393, 465, 558, 655, 761, 786, 930, 1179, 1310, 1395, 1522, 1965, 2283, 2358, 2790, 3805, 3930, 4061, 4566, 5895, 6849, 7610, 8122, 11415, 11790, 12183, 13698, 20305, 22830, 23591, 24366, 34245, 36549, 40610, 47182, 60915, 68490, 70773, 73098, 99691, 117955, 121830, 141546, 182745, 199382, 212319, 235910, 299073, 353865, 365490, 424638, 498455, 598146, 707730, 897219, 996910, 1061595, 1495365, 1794438, 2123190, 2990730, 3090421, 4486095, 6180842, 8972190, 9271263, 15452105, 18542526, 27813789, 30904210, 46356315, 55627578, 92712630, 139068945, 278137890]

約数ペア:

[(1, 278137890), (2, 139068945), (3, 92712630), (5, 55627578), (6, 46356315), (9, 30904210), (10, 27813789), (15, 18542526), (18, 15452105), (30, 9271263), (31, 8972190), (45, 6180842), (62, 4486095), (90, 3090421), (93, 2990730), (131, 2123190), (155, 1794438), (186, 1495365), (262, 1061595), (279, 996910), (310, 897219), (393, 707730), (465, 598146), (558, 498455), (655, 424638), (761, 365490), (786, 353865), (930, 299073), (1179, 235910), (1310, 212319), (1395, 199382), (1522, 182745), (1965, 141546), (2283, 121830), (2358, 117955), (2790, 99691), (3805, 73098), (3930, 70773), (4061, 68490), (4566, 60915), (5895, 47182), (6849, 40610), (7610, 36549), (8122, 34245), (11415, 24366), (11790, 23591), (12183, 22830), (13698, 20305)]