201326471990

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{163}}^1\times {\mathrm{2520677}}^1$

素因数の和:2520861

約数の個数: 48

約数和(自身を含む): 424139362992

約数和(自身を除く): 222812891002

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 163, 245, 326, 490, 815, 1141, 1630, 2282, 5705, 7987, 11410, 15974, 39935, 79870, 2520677, 5041354, 12603385, 17644739, 25206770, 35289478, 88223695, 123513173, 176447390, 247026346, 410870351, 617565865, 821740702, 1235131730, 2054351755, 2876092457, 4108703510, 5752184914, 14380462285, 20132647199, 28760924570, 40265294398, 100663235995, 201326471990]

約数ペア:

[(1, 201326471990), (2, 100663235995), (5, 40265294398), (7, 28760924570), (10, 20132647199), (14, 14380462285), (35, 5752184914), (49, 4108703510), (70, 2876092457), (98, 2054351755), (163, 1235131730), (245, 821740702), (326, 617565865), (490, 410870351), (815, 247026346), (1141, 176447390), (1630, 123513173), (2282, 88223695), (5705, 35289478), (7987, 25206770), (11410, 17644739), (15974, 12603385), (39935, 5041354), (79870, 2520677)]