16505380

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{163}}^1$

素因数の和:316

約数の個数: 48

約数和(自身を含む): 35872704

約数和(自身を除く): 19367324

約数列:

[1, 2, 4, 5, 10, 20, 61, 83, 122, 163, 166, 244, 305, 326, 332, 415, 610, 652, 815, 830, 1220, 1630, 1660, 3260, 5063, 9943, 10126, 13529, 19886, 20252, 25315, 27058, 39772, 49715, 50630, 54116, 67645, 99430, 101260, 135290, 198860, 270580, 825269, 1650538, 3301076, 4126345, 8252690, 16505380]

約数ペア:

[(1, 16505380), (2, 8252690), (4, 4126345), (5, 3301076), (10, 1650538), (20, 825269), (61, 270580), (83, 198860), (122, 135290), (163, 101260), (166, 99430), (244, 67645), (305, 54116), (326, 50630), (332, 49715), (415, 39772), (610, 27058), (652, 25315), (815, 20252), (830, 19886), (1220, 13529), (1630, 10126), (1660, 9943), (3260, 5063)]