20338920

素因数分解:

$2^3\times 3^2\times 5^1\times 7^2\times {\mathrm{1153}}^1$

素因数の和:1184

約数の個数: 144

約数和(自身を含む): 76960260

約数和(自身を除く): 56621340

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 49, 56, 60, 63, 70, 72, 84, 90, 98, 105, 120, 126, 140, 147, 168, 180, 196, 210, 245, 252, 280, 294, 315, 360, 392, 420, 441, 490, 504, 588, 630, 735, 840, 882, 980, 1153, 1176, 1260, 1470, 1764, 1960, 2205, 2306, 2520, 2940, 3459, 3528, 4410, 4612, 5765, 5880, 6918, 8071, 8820, 9224, 10377, 11530, 13836, 16142, 17295, 17640, 20754, 23060, 24213, 27672, 32284, 34590, 40355, 41508, 46120, 48426, 51885, 56497, 64568, 69180, 72639, 80710, 83016, 96852, 103770, 112994, 121065, 138360, 145278, 161420, 169491, 193704, 207540, 225988, 242130, 282485, 290556, 322840, 338982, 363195, 415080, 451976, 484260, 508473, 564970, 581112, 677964, 726390, 847455, 968520, 1016946, 1129940, 1355928, 1452780, 1694910, 2033892, 2259880, 2542365, 2905560, 3389820, 4067784, 5084730, 6779640, 10169460, 20338920]

約数ペア:

[(1, 20338920), (2, 10169460), (3, 6779640), (4, 5084730), (5, 4067784), (6, 3389820), (7, 2905560), (8, 2542365), (9, 2259880), (10, 2033892), (12, 1694910), (14, 1452780), (15, 1355928), (18, 1129940), (20, 1016946), (21, 968520), (24, 847455), (28, 726390), (30, 677964), (35, 581112), (36, 564970), (40, 508473), (42, 484260), (45, 451976), (49, 415080), (56, 363195), (60, 338982), (63, 322840), (70, 290556), (72, 282485), (84, 242130), (90, 225988), (98, 207540), (105, 193704), (120, 169491), (126, 161420), (140, 145278), (147, 138360), (168, 121065), (180, 112994), (196, 103770), (210, 96852), (245, 83016), (252, 80710), (280, 72639), (294, 69180), (315, 64568), (360, 56497), (392, 51885), (420, 48426), (441, 46120), (490, 41508), (504, 40355), (588, 34590), (630, 32284), (735, 27672), (840, 24213), (882, 23060), (980, 20754), (1153, 17640), (1176, 17295), (1260, 16142), (1470, 13836), (1764, 11530), (1960, 10377), (2205, 9224), (2306, 8820), (2520, 8071), (2940, 6918), (3459, 5880), (3528, 5765), (4410, 4612)]