20296010

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{199}}^1$

素因数の和:291

約数の個数: 64

約数和(自身を含む): 44236800

約数和(自身を除く): 23940790

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 47, 62, 70, 94, 155, 199, 217, 235, 310, 329, 398, 434, 470, 658, 995, 1085, 1393, 1457, 1645, 1990, 2170, 2786, 2914, 3290, 6169, 6965, 7285, 9353, 10199, 12338, 13930, 14570, 18706, 20398, 30845, 43183, 46765, 50995, 61690, 65471, 86366, 93530, 101990, 130942, 215915, 289943, 327355, 431830, 579886, 654710, 1449715, 2029601, 2899430, 4059202, 10148005, 20296010]

約数ペア:

[(1, 20296010), (2, 10148005), (5, 4059202), (7, 2899430), (10, 2029601), (14, 1449715), (31, 654710), (35, 579886), (47, 431830), (62, 327355), (70, 289943), (94, 215915), (155, 130942), (199, 101990), (217, 93530), (235, 86366), (310, 65471), (329, 61690), (398, 50995), (434, 46765), (470, 43183), (658, 30845), (995, 20398), (1085, 18706), (1393, 14570), (1457, 13930), (1645, 12338), (1990, 10199), (2170, 9353), (2786, 7285), (2914, 6965), (3290, 6169)]