2109689500

素因数分解:

$2^2\times 5^3\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{1039}}^1$

素因数の和:1220

約数の個数: 96

約数和(自身を含む): 4797112320

約数和(自身を除く): 2687422820

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 125, 131, 155, 250, 262, 310, 500, 524, 620, 655, 775, 1039, 1310, 1550, 2078, 2620, 3100, 3275, 3875, 4061, 4156, 5195, 6550, 7750, 8122, 10390, 13100, 15500, 16244, 16375, 20305, 20780, 25975, 32209, 32750, 40610, 51950, 64418, 65500, 81220, 101525, 103900, 128836, 129875, 136109, 161045, 203050, 259750, 272218, 322090, 406100, 507625, 519500, 544436, 644180, 680545, 805225, 1015250, 1361090, 1610450, 2030500, 2722180, 3220900, 3402725, 4026125, 4219379, 6805450, 8052250, 8438758, 13610900, 16104500, 16877516, 17013625, 21096895, 34027250, 42193790, 68054500, 84387580, 105484475, 210968950, 421937900, 527422375, 1054844750, 2109689500]

約数ペア:

[(1, 2109689500), (2, 1054844750), (4, 527422375), (5, 421937900), (10, 210968950), (20, 105484475), (25, 84387580), (31, 68054500), (50, 42193790), (62, 34027250), (100, 21096895), (124, 17013625), (125, 16877516), (131, 16104500), (155, 13610900), (250, 8438758), (262, 8052250), (310, 6805450), (500, 4219379), (524, 4026125), (620, 3402725), (655, 3220900), (775, 2722180), (1039, 2030500), (1310, 1610450), (1550, 1361090), (2078, 1015250), (2620, 805225), (3100, 680545), (3275, 644180), (3875, 544436), (4061, 519500), (4156, 507625), (5195, 406100), (6550, 322090), (7750, 272218), (8122, 259750), (10390, 203050), (13100, 161045), (15500, 136109), (16244, 129875), (16375, 128836), (20305, 103900), (20780, 101525), (25975, 81220), (32209, 65500), (32750, 64418), (40610, 51950)]