20805174

素因数分解:

$2^1\times 3^5\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1$

素因数の和:156

約数の個数: 96

約数和(自身を含む): 52284960

約数和(自身を除く): 31479786

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 37, 39, 54, 74, 78, 81, 89, 111, 117, 162, 178, 222, 234, 243, 267, 333, 351, 481, 486, 534, 666, 702, 801, 962, 999, 1053, 1157, 1443, 1602, 1998, 2106, 2314, 2403, 2886, 2997, 3159, 3293, 3471, 4329, 4806, 5994, 6318, 6586, 6942, 7209, 8658, 8991, 9879, 10413, 12987, 14418, 17982, 19758, 20826, 21627, 25974, 29637, 31239, 38961, 42809, 43254, 59274, 62478, 77922, 85618, 88911, 93717, 116883, 128427, 177822, 187434, 233766, 256854, 266733, 281151, 385281, 533466, 562302, 770562, 800199, 1155843, 1600398, 2311686, 3467529, 6935058, 10402587, 20805174]

約数ペア:

[(1, 20805174), (2, 10402587), (3, 6935058), (6, 3467529), (9, 2311686), (13, 1600398), (18, 1155843), (26, 800199), (27, 770562), (37, 562302), (39, 533466), (54, 385281), (74, 281151), (78, 266733), (81, 256854), (89, 233766), (111, 187434), (117, 177822), (162, 128427), (178, 116883), (222, 93717), (234, 88911), (243, 85618), (267, 77922), (333, 62478), (351, 59274), (481, 43254), (486, 42809), (534, 38961), (666, 31239), (702, 29637), (801, 25974), (962, 21627), (999, 20826), (1053, 19758), (1157, 17982), (1443, 14418), (1602, 12987), (1998, 10413), (2106, 9879), (2314, 8991), (2403, 8658), (2886, 7209), (2997, 6942), (3159, 6586), (3293, 6318), (3471, 5994), (4329, 4806)]