20177801420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1667}}^1\times {\mathrm{2789}}^1$

素因数の和:4503

約数の個数: 96

約数和(自身を含む): 50036797440

約数和(自身を除く): 29858996020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 1667, 2170, 2789, 3334, 4340, 5578, 6668, 8335, 11156, 11669, 13945, 16670, 19523, 23338, 27890, 33340, 39046, 46676, 51677, 55780, 58345, 78092, 86459, 97615, 103354, 116690, 172918, 195230, 206708, 233380, 258385, 345836, 361739, 390460, 432295, 516770, 605213, 723478, 864590, 1033540, 1210426, 1446956, 1729180, 1808695, 2420852, 3026065, 3617390, 4649263, 6052130, 7234780, 9298526, 12104260, 18597052, 23246315, 32544841, 46492630, 65089682, 92985260, 130179364, 144127153, 162724205, 288254306, 325448410, 576508612, 650896820, 720635765, 1008890071, 1441271530, 2017780142, 2882543060, 4035560284, 5044450355, 10088900710, 20177801420]

約数ペア:

[(1, 20177801420), (2, 10088900710), (4, 5044450355), (5, 4035560284), (7, 2882543060), (10, 2017780142), (14, 1441271530), (20, 1008890071), (28, 720635765), (31, 650896820), (35, 576508612), (62, 325448410), (70, 288254306), (124, 162724205), (140, 144127153), (155, 130179364), (217, 92985260), (310, 65089682), (434, 46492630), (620, 32544841), (868, 23246315), (1085, 18597052), (1667, 12104260), (2170, 9298526), (2789, 7234780), (3334, 6052130), (4340, 4649263), (5578, 3617390), (6668, 3026065), (8335, 2420852), (11156, 1808695), (11669, 1729180), (13945, 1446956), (16670, 1210426), (19523, 1033540), (23338, 864590), (27890, 723478), (33340, 605213), (39046, 516770), (46676, 432295), (51677, 390460), (55780, 361739), (58345, 345836), (78092, 258385), (86459, 233380), (97615, 206708), (103354, 195230), (116690, 172918)]