20797878570

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{331}}^1\times {\mathrm{13009}}^1$

素因数の和:13380

約数の個数: 128

約数和(自身を含む): 59710279680

約数和(自身を除く): 38912401110

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 23, 30, 35, 42, 46, 69, 70, 105, 115, 138, 161, 210, 230, 322, 331, 345, 483, 662, 690, 805, 966, 993, 1610, 1655, 1986, 2317, 2415, 3310, 4634, 4830, 4965, 6951, 7613, 9930, 11585, 13009, 13902, 15226, 22839, 23170, 26018, 34755, 38065, 39027, 45678, 53291, 65045, 69510, 76130, 78054, 91063, 106582, 114195, 130090, 159873, 182126, 195135, 228390, 266455, 273189, 299207, 319746, 390270, 455315, 532910, 546378, 598414, 799365, 897621, 910630, 1365945, 1496035, 1598730, 1795242, 2094449, 2731890, 2992070, 4188898, 4305979, 4488105, 6283347, 8611958, 8976210, 10472245, 12566694, 12917937, 20944490, 21529895, 25835874, 30141853, 31416735, 43059790, 60283706, 62833470, 64589685, 90425559, 99037517, 129179370, 150709265, 180851118, 198075034, 297112551, 301418530, 452127795, 495187585, 594225102, 693262619, 904255590, 990375170, 1386525238, 1485562755, 2079787857, 2971125510, 3466313095, 4159575714, 6932626190, 10398939285, 20797878570]

約数ペア:

[(1, 20797878570), (2, 10398939285), (3, 6932626190), (5, 4159575714), (6, 3466313095), (7, 2971125510), (10, 2079787857), (14, 1485562755), (15, 1386525238), (21, 990375170), (23, 904255590), (30, 693262619), (35, 594225102), (42, 495187585), (46, 452127795), (69, 301418530), (70, 297112551), (105, 198075034), (115, 180851118), (138, 150709265), (161, 129179370), (210, 99037517), (230, 90425559), (322, 64589685), (331, 62833470), (345, 60283706), (483, 43059790), (662, 31416735), (690, 30141853), (805, 25835874), (966, 21529895), (993, 20944490), (1610, 12917937), (1655, 12566694), (1986, 10472245), (2317, 8976210), (2415, 8611958), (3310, 6283347), (4634, 4488105), (4830, 4305979), (4965, 4188898), (6951, 2992070), (7613, 2731890), (9930, 2094449), (11585, 1795242), (13009, 1598730), (13902, 1496035), (15226, 1365945), (22839, 910630), (23170, 897621), (26018, 799365), (34755, 598414), (38065, 546378), (39027, 532910), (45678, 455315), (53291, 390270), (65045, 319746), (69510, 299207), (76130, 273189), (78054, 266455), (91063, 228390), (106582, 195135), (114195, 182126), (130090, 159873)]