20301280

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{4093}}^1$

素因数の和:4139

約数の個数: 48

約数和(自身を含む): 49521024

約数和(自身を除く): 29219744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 992, 1240, 2480, 4093, 4960, 8186, 16372, 20465, 32744, 40930, 65488, 81860, 126883, 130976, 163720, 253766, 327440, 507532, 634415, 654880, 1015064, 1268830, 2030128, 2537660, 4060256, 5075320, 10150640, 20301280]

約数ペア:

[(1, 20301280), (2, 10150640), (4, 5075320), (5, 4060256), (8, 2537660), (10, 2030128), (16, 1268830), (20, 1015064), (31, 654880), (32, 634415), (40, 507532), (62, 327440), (80, 253766), (124, 163720), (155, 130976), (160, 126883), (248, 81860), (310, 65488), (496, 40930), (620, 32744), (992, 20465), (1240, 16372), (2480, 8186), (4093, 4960)]