221020920

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{10771}}^1$

素因数の和:10810

約数の個数: 128

約数和(自身を含む): 775584000

約数和(自身を除く): 554563080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 27, 30, 36, 38, 40, 45, 54, 57, 60, 72, 76, 90, 95, 108, 114, 120, 135, 152, 171, 180, 190, 216, 228, 270, 285, 342, 360, 380, 456, 513, 540, 570, 684, 760, 855, 1026, 1080, 1140, 1368, 1710, 2052, 2280, 2565, 3420, 4104, 5130, 6840, 10260, 10771, 20520, 21542, 32313, 43084, 53855, 64626, 86168, 96939, 107710, 129252, 161565, 193878, 204649, 215420, 258504, 290817, 323130, 387756, 409298, 430840, 484695, 581634, 613947, 646260, 775512, 818596, 969390, 1023245, 1163268, 1227894, 1292520, 1454085, 1637192, 1841841, 1938780, 2046490, 2326536, 2455788, 2908170, 3069735, 3683682, 3877560, 4092980, 4911576, 5525523, 5816340, 6139470, 7367364, 8185960, 9209205, 11051046, 11632680, 12278940, 14734728, 18418410, 22102092, 24557880, 27627615, 36836820, 44204184, 55255230, 73673640, 110510460, 221020920]

約数ペア:

[(1, 221020920), (2, 110510460), (3, 73673640), (4, 55255230), (5, 44204184), (6, 36836820), (8, 27627615), (9, 24557880), (10, 22102092), (12, 18418410), (15, 14734728), (18, 12278940), (19, 11632680), (20, 11051046), (24, 9209205), (27, 8185960), (30, 7367364), (36, 6139470), (38, 5816340), (40, 5525523), (45, 4911576), (54, 4092980), (57, 3877560), (60, 3683682), (72, 3069735), (76, 2908170), (90, 2455788), (95, 2326536), (108, 2046490), (114, 1938780), (120, 1841841), (135, 1637192), (152, 1454085), (171, 1292520), (180, 1227894), (190, 1163268), (216, 1023245), (228, 969390), (270, 818596), (285, 775512), (342, 646260), (360, 613947), (380, 581634), (456, 484695), (513, 430840), (540, 409298), (570, 387756), (684, 323130), (760, 290817), (855, 258504), (1026, 215420), (1080, 204649), (1140, 193878), (1368, 161565), (1710, 129252), (2052, 107710), (2280, 96939), (2565, 86168), (3420, 64626), (4104, 53855), (5130, 43084), (6840, 32313), (10260, 21542), (10771, 20520)]