31362500

素因数分解:

$2^2\times 5^5\times {\mathrm{13}}^1\times {\mathrm{193}}^1$

素因数の和:235

約数の個数: 72

約数和(自身を含む): 74260872

約数和(自身を除く): 42898372

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 193, 250, 260, 325, 386, 500, 625, 650, 772, 965, 1250, 1300, 1625, 1930, 2500, 2509, 3125, 3250, 3860, 4825, 5018, 6250, 6500, 8125, 9650, 10036, 12500, 12545, 16250, 19300, 24125, 25090, 32500, 40625, 48250, 50180, 62725, 81250, 96500, 120625, 125450, 162500, 241250, 250900, 313625, 482500, 603125, 627250, 1206250, 1254500, 1568125, 2412500, 3136250, 6272500, 7840625, 15681250, 31362500]

約数ペア:

[(1, 31362500), (2, 15681250), (4, 7840625), (5, 6272500), (10, 3136250), (13, 2412500), (20, 1568125), (25, 1254500), (26, 1206250), (50, 627250), (52, 603125), (65, 482500), (100, 313625), (125, 250900), (130, 241250), (193, 162500), (250, 125450), (260, 120625), (325, 96500), (386, 81250), (500, 62725), (625, 50180), (650, 48250), (772, 40625), (965, 32500), (1250, 25090), (1300, 24125), (1625, 19300), (1930, 16250), (2500, 12545), (2509, 12500), (3125, 10036), (3250, 9650), (3860, 8125), (4825, 6500), (5018, 6250)]