123998940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2789}}^1$

素因数の和:2836

約数の個数: 144

約数和(自身を含む): 426535200

約数和(自身を除く): 302536260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 19, 20, 26, 30, 36, 38, 39, 45, 52, 57, 60, 65, 76, 78, 90, 95, 114, 117, 130, 156, 171, 180, 190, 195, 228, 234, 247, 260, 285, 342, 380, 390, 468, 494, 570, 585, 684, 741, 780, 855, 988, 1140, 1170, 1235, 1482, 1710, 2223, 2340, 2470, 2789, 2964, 3420, 3705, 4446, 4940, 5578, 7410, 8367, 8892, 11115, 11156, 13945, 14820, 16734, 22230, 25101, 27890, 33468, 36257, 41835, 44460, 50202, 52991, 55780, 72514, 83670, 100404, 105982, 108771, 125505, 145028, 158973, 167340, 181285, 211964, 217542, 251010, 264955, 317946, 326313, 362570, 435084, 476919, 502020, 529910, 543855, 635892, 652626, 688883, 725140, 794865, 953838, 1059820, 1087710, 1305252, 1377766, 1589730, 1631565, 1907676, 2066649, 2175420, 2384595, 2755532, 3179460, 3263130, 3444415, 4133298, 4769190, 6199947, 6526260, 6888830, 8266596, 9538380, 10333245, 12399894, 13777660, 20666490, 24799788, 30999735, 41332980, 61999470, 123998940]

約数ペア:

[(1, 123998940), (2, 61999470), (3, 41332980), (4, 30999735), (5, 24799788), (6, 20666490), (9, 13777660), (10, 12399894), (12, 10333245), (13, 9538380), (15, 8266596), (18, 6888830), (19, 6526260), (20, 6199947), (26, 4769190), (30, 4133298), (36, 3444415), (38, 3263130), (39, 3179460), (45, 2755532), (52, 2384595), (57, 2175420), (60, 2066649), (65, 1907676), (76, 1631565), (78, 1589730), (90, 1377766), (95, 1305252), (114, 1087710), (117, 1059820), (130, 953838), (156, 794865), (171, 725140), (180, 688883), (190, 652626), (195, 635892), (228, 543855), (234, 529910), (247, 502020), (260, 476919), (285, 435084), (342, 362570), (380, 326313), (390, 317946), (468, 264955), (494, 251010), (570, 217542), (585, 211964), (684, 181285), (741, 167340), (780, 158973), (855, 145028), (988, 125505), (1140, 108771), (1170, 105982), (1235, 100404), (1482, 83670), (1710, 72514), (2223, 55780), (2340, 52991), (2470, 50202), (2789, 44460), (2964, 41835), (3420, 36257), (3705, 33468), (4446, 27890), (4940, 25101), (5578, 22230), (7410, 16734), (8367, 14820), (8892, 13945), (11115, 11156)]