178161720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1901}}^1$

素因数の和:1997

約数の個数: 128

約数和(自身を含む): 591598080

約数和(自身を除く): 413436360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 71, 88, 110, 120, 132, 142, 165, 213, 220, 264, 284, 330, 355, 426, 440, 568, 660, 710, 781, 852, 1065, 1320, 1420, 1562, 1704, 1901, 2130, 2343, 2840, 3124, 3802, 3905, 4260, 4686, 5703, 6248, 7604, 7810, 8520, 9372, 9505, 11406, 11715, 15208, 15620, 18744, 19010, 20911, 22812, 23430, 28515, 31240, 38020, 41822, 45624, 46860, 57030, 62733, 76040, 83644, 93720, 104555, 114060, 125466, 134971, 167288, 209110, 228120, 250932, 269942, 313665, 404913, 418220, 501864, 539884, 627330, 674855, 809826, 836440, 1079768, 1254660, 1349710, 1484681, 1619652, 2024565, 2509320, 2699420, 2969362, 3239304, 4049130, 4454043, 5398840, 5938724, 7423405, 8098260, 8908086, 11877448, 14846810, 16196520, 17816172, 22270215, 29693620, 35632344, 44540430, 59387240, 89080860, 178161720]

約数ペア:

[(1, 178161720), (2, 89080860), (3, 59387240), (4, 44540430), (5, 35632344), (6, 29693620), (8, 22270215), (10, 17816172), (11, 16196520), (12, 14846810), (15, 11877448), (20, 8908086), (22, 8098260), (24, 7423405), (30, 5938724), (33, 5398840), (40, 4454043), (44, 4049130), (55, 3239304), (60, 2969362), (66, 2699420), (71, 2509320), (88, 2024565), (110, 1619652), (120, 1484681), (132, 1349710), (142, 1254660), (165, 1079768), (213, 836440), (220, 809826), (264, 674855), (284, 627330), (330, 539884), (355, 501864), (426, 418220), (440, 404913), (568, 313665), (660, 269942), (710, 250932), (781, 228120), (852, 209110), (1065, 167288), (1320, 134971), (1420, 125466), (1562, 114060), (1704, 104555), (1901, 93720), (2130, 83644), (2343, 76040), (2840, 62733), (3124, 57030), (3802, 46860), (3905, 45624), (4260, 41822), (4686, 38020), (5703, 31240), (6248, 28515), (7604, 23430), (7810, 22812), (8520, 20911), (9372, 19010), (9505, 18744), (11406, 15620), (11715, 15208)]