19004925

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1$

素因数の和:210

約数の個数: 48

約数和(自身を含む): 32997888

約数和(自身を除く): 13992963

約数列:

[1, 3, 5, 15, 25, 43, 71, 75, 83, 129, 213, 215, 249, 355, 415, 645, 1065, 1075, 1245, 1775, 2075, 3053, 3225, 3569, 5325, 5893, 6225, 9159, 10707, 15265, 17679, 17845, 29465, 45795, 53535, 76325, 88395, 89225, 147325, 228975, 253399, 267675, 441975, 760197, 1266995, 3800985, 6334975, 19004925]

約数ペア:

[(1, 19004925), (3, 6334975), (5, 3800985), (15, 1266995), (25, 760197), (43, 441975), (71, 267675), (75, 253399), (83, 228975), (129, 147325), (213, 89225), (215, 88395), (249, 76325), (355, 53535), (415, 45795), (645, 29465), (1065, 17845), (1075, 17679), (1245, 15265), (1775, 10707), (2075, 9159), (3053, 6225), (3225, 5893), (3569, 5325)]