20112751516

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{87251}}^1$

素因数の和:87323

約数の個数: 72

約数和(自身を含む): 42919607808

約数和(自身を除く): 22806856292

約数列:

[1, 2, 4, 11, 13, 22, 26, 31, 44, 52, 62, 124, 143, 169, 286, 338, 341, 403, 572, 676, 682, 806, 1364, 1612, 1859, 3718, 4433, 5239, 7436, 8866, 10478, 17732, 20956, 57629, 87251, 115258, 174502, 230516, 349004, 959761, 1134263, 1919522, 2268526, 2704781, 3839044, 4537052, 5409562, 10819124, 12476893, 14745419, 24953786, 29490838, 29752591, 35162153, 49907572, 58981676, 59505182, 70324306, 119010364, 140648612, 162199609, 324399218, 386783683, 457107989, 648798436, 773567366, 914215978, 1547134732, 1828431956, 5028187879, 10056375758, 20112751516]

約数ペア:

[(1, 20112751516), (2, 10056375758), (4, 5028187879), (11, 1828431956), (13, 1547134732), (22, 914215978), (26, 773567366), (31, 648798436), (44, 457107989), (52, 386783683), (62, 324399218), (124, 162199609), (143, 140648612), (169, 119010364), (286, 70324306), (338, 59505182), (341, 58981676), (403, 49907572), (572, 35162153), (676, 29752591), (682, 29490838), (806, 24953786), (1364, 14745419), (1612, 12476893), (1859, 10819124), (3718, 5409562), (4433, 4537052), (5239, 3839044), (7436, 2704781), (8866, 2268526), (10478, 1919522), (17732, 1134263), (20956, 959761), (57629, 349004), (87251, 230516), (115258, 174502)]