1981132554920

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{743}}^1\times {\mathrm{49123}}^1$

素因数の和:49959

約数の個数: 128

約数和(自身を含む): 4736653977600

約数和(自身を除く): 2755521422680

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 59, 92, 115, 118, 184, 230, 236, 295, 460, 472, 590, 743, 920, 1180, 1357, 1486, 2360, 2714, 2972, 3715, 5428, 5944, 6785, 7430, 10856, 13570, 14860, 17089, 27140, 29720, 34178, 43837, 49123, 54280, 68356, 85445, 87674, 98246, 136712, 170890, 175348, 196492, 219185, 245615, 341780, 350696, 392984, 438370, 491230, 683560, 876740, 982460, 1008251, 1129829, 1753480, 1964920, 2016502, 2259658, 2898257, 4033004, 4519316, 5041255, 5649145, 5796514, 8066008, 9038632, 10082510, 11298290, 11593028, 14491285, 20165020, 22596580, 23186056, 28982570, 36498389, 40330040, 45193160, 57965140, 66659911, 72996778, 115930280, 133319822, 145993556, 182491945, 266639644, 291987112, 333299555, 364983890, 533279288, 666599110, 729967780, 839462947, 1333198220, 1459935560, 1678925894, 2153404951, 2666396440, 3357851788, 4197314735, 4306809902, 6715703576, 8394629470, 8613619804, 10767024755, 16789258940, 17227239608, 21534049510, 33578517880, 43068099020, 49528313873, 86136198040, 99056627746, 198113255492, 247641569365, 396226510984, 495283138730, 990566277460, 1981132554920]

約数ペア:

[(1, 1981132554920), (2, 990566277460), (4, 495283138730), (5, 396226510984), (8, 247641569365), (10, 198113255492), (20, 99056627746), (23, 86136198040), (40, 49528313873), (46, 43068099020), (59, 33578517880), (92, 21534049510), (115, 17227239608), (118, 16789258940), (184, 10767024755), (230, 8613619804), (236, 8394629470), (295, 6715703576), (460, 4306809902), (472, 4197314735), (590, 3357851788), (743, 2666396440), (920, 2153404951), (1180, 1678925894), (1357, 1459935560), (1486, 1333198220), (2360, 839462947), (2714, 729967780), (2972, 666599110), (3715, 533279288), (5428, 364983890), (5944, 333299555), (6785, 291987112), (7430, 266639644), (10856, 182491945), (13570, 145993556), (14860, 133319822), (17089, 115930280), (27140, 72996778), (29720, 66659911), (34178, 57965140), (43837, 45193160), (49123, 40330040), (54280, 36498389), (68356, 28982570), (85445, 23186056), (87674, 22596580), (98246, 20165020), (136712, 14491285), (170890, 11593028), (175348, 11298290), (196492, 10082510), (219185, 9038632), (245615, 8066008), (341780, 5796514), (350696, 5649145), (392984, 5041255), (438370, 4519316), (491230, 4033004), (683560, 2898257), (876740, 2259658), (982460, 2016502), (1008251, 1964920), (1129829, 1753480)]