156812500

素因数分解:

$2^2\times 5^6\times {\mathrm{13}}^1\times {\mathrm{193}}^1$

素因数の和:240

約数の個数: 84

約数和(自身を含む): 371323372

約数和(自身を除く): 214510872

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, 15625, 16250, 19300, 24125, 25090, 31250, 32500, 40625, 48250, 50180, 62500, 62725, 81250, 96500, 120625, 125450, 162500, 203125, 241250, 250900, 313625, 406250, 482500, 603125, 627250, 812500, 1206250, 1254500, 1568125, 2412500, 3015625, 3136250, 6031250, 6272500, 7840625, 12062500, 15681250, 31362500, 39203125, 78406250, 156812500]

約数ペア:

[(1, 156812500), (2, 78406250), (4, 39203125), (5, 31362500), (10, 15681250), (13, 12062500), (20, 7840625), (25, 6272500), (26, 6031250), (50, 3136250), (52, 3015625), (65, 2412500), (100, 1568125), (125, 1254500), (130, 1206250), (193, 812500), (250, 627250), (260, 603125), (325, 482500), (386, 406250), (500, 313625), (625, 250900), (650, 241250), (772, 203125), (965, 162500), (1250, 125450), (1300, 120625), (1625, 96500), (1930, 81250), (2500, 62725), (2509, 62500), (3125, 50180), (3250, 48250), (3860, 40625), (4825, 32500), (5018, 31250), (6250, 25090), (6500, 24125), (8125, 19300), (9650, 16250), (10036, 15625), (12500, 12545)]