21920645040

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{686737}}^1$

素因数の和:686779

約数の個数: 160

約数和(自身を含む): 81749291520

約数和(自身を除く): 59828646480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 19, 20, 21, 24, 28, 30, 35, 38, 40, 42, 48, 56, 57, 60, 70, 76, 80, 84, 95, 105, 112, 114, 120, 133, 140, 152, 168, 190, 210, 228, 240, 266, 280, 285, 304, 336, 380, 399, 420, 456, 532, 560, 570, 665, 760, 798, 840, 912, 1064, 1140, 1330, 1520, 1596, 1680, 1995, 2128, 2280, 2660, 3192, 3990, 4560, 5320, 6384, 7980, 10640, 15960, 31920, 686737, 1373474, 2060211, 2746948, 3433685, 4120422, 4807159, 5493896, 6867370, 8240844, 9614318, 10301055, 10987792, 13048003, 13734740, 14421477, 16481688, 19228636, 20602110, 24035795, 26096006, 27469480, 28842954, 32963376, 38457272, 39144009, 41204220, 48071590, 52192012, 54938960, 57685908, 65240015, 72107385, 76914544, 78288018, 82408440, 91336021, 96143180, 104384024, 115371816, 130480030, 144214770, 156576036, 164816880, 182672042, 192286360, 195720045, 208768048, 230743632, 260960060, 274008063, 288429540, 313152072, 365344084, 384572720, 391440090, 456680105, 521920120, 548016126, 576859080, 626304144, 730688168, 782880180, 913360210, 1043840240, 1096032252, 1153718160, 1370040315, 1461376336, 1565760360, 1826720420, 2192064504, 2740080630, 3131520720, 3653440840, 4384129008, 5480161260, 7306881680, 10960322520, 21920645040]

約数ペア:

[(1, 21920645040), (2, 10960322520), (3, 7306881680), (4, 5480161260), (5, 4384129008), (6, 3653440840), (7, 3131520720), (8, 2740080630), (10, 2192064504), (12, 1826720420), (14, 1565760360), (15, 1461376336), (16, 1370040315), (19, 1153718160), (20, 1096032252), (21, 1043840240), (24, 913360210), (28, 782880180), (30, 730688168), (35, 626304144), (38, 576859080), (40, 548016126), (42, 521920120), (48, 456680105), (56, 391440090), (57, 384572720), (60, 365344084), (70, 313152072), (76, 288429540), (80, 274008063), (84, 260960060), (95, 230743632), (105, 208768048), (112, 195720045), (114, 192286360), (120, 182672042), (133, 164816880), (140, 156576036), (152, 144214770), (168, 130480030), (190, 115371816), (210, 104384024), (228, 96143180), (240, 91336021), (266, 82408440), (280, 78288018), (285, 76914544), (304, 72107385), (336, 65240015), (380, 57685908), (399, 54938960), (420, 52192012), (456, 48071590), (532, 41204220), (560, 39144009), (570, 38457272), (665, 32963376), (760, 28842954), (798, 27469480), (840, 26096006), (912, 24035795), (1064, 20602110), (1140, 19228636), (1330, 16481688), (1520, 14421477), (1596, 13734740), (1680, 13048003), (1995, 10987792), (2128, 10301055), (2280, 9614318), (2660, 8240844), (3192, 6867370), (3990, 5493896), (4560, 4807159), (5320, 4120422), (6384, 3433685), (7980, 2746948), (10640, 2060211), (15960, 1373474), (31920, 686737)]