20779528

素因数分解:

$2^3\times 7^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:171

約数の個数: 96

約数和(自身を含む): 50889600

約数和(自身を除く): 30110072

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 49, 56, 61, 77, 79, 88, 98, 122, 154, 158, 196, 244, 308, 316, 392, 427, 488, 539, 553, 616, 632, 671, 854, 869, 1078, 1106, 1342, 1708, 1738, 2156, 2212, 2684, 2989, 3416, 3476, 3871, 4312, 4424, 4697, 4819, 5368, 5978, 6083, 6952, 7742, 9394, 9638, 11956, 12166, 15484, 18788, 19276, 23912, 24332, 30968, 32879, 33733, 37576, 38552, 42581, 48664, 53009, 65758, 67466, 85162, 106018, 131516, 134932, 170324, 212036, 236131, 263032, 269864, 340648, 371063, 424072, 472262, 742126, 944524, 1484252, 1889048, 2597441, 2968504, 5194882, 10389764, 20779528]

約数ペア:

[(1, 20779528), (2, 10389764), (4, 5194882), (7, 2968504), (8, 2597441), (11, 1889048), (14, 1484252), (22, 944524), (28, 742126), (44, 472262), (49, 424072), (56, 371063), (61, 340648), (77, 269864), (79, 263032), (88, 236131), (98, 212036), (122, 170324), (154, 134932), (158, 131516), (196, 106018), (244, 85162), (308, 67466), (316, 65758), (392, 53009), (427, 48664), (488, 42581), (539, 38552), (553, 37576), (616, 33733), (632, 32879), (671, 30968), (854, 24332), (869, 23912), (1078, 19276), (1106, 18788), (1342, 15484), (1708, 12166), (1738, 11956), (2156, 9638), (2212, 9394), (2684, 7742), (2989, 6952), (3416, 6083), (3476, 5978), (3871, 5368), (4312, 4819), (4424, 4697)]