20512543688

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{7829}}^1$

素因数の和:7975

約数の個数: 128

約数和(自身を含む): 48934368000

約数和(自身を除く): 28421824312

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 59, 61, 91, 104, 118, 122, 182, 236, 244, 364, 413, 427, 472, 488, 728, 767, 793, 826, 854, 1534, 1586, 1652, 1708, 3068, 3172, 3304, 3416, 3599, 5369, 5551, 6136, 6344, 7198, 7829, 10738, 11102, 14396, 15658, 21476, 22204, 25193, 28792, 31316, 42952, 44408, 46787, 50386, 54803, 62632, 93574, 100772, 101777, 109606, 187148, 201544, 203554, 219212, 327509, 374296, 407108, 438424, 461911, 477569, 655018, 712439, 814216, 923822, 955138, 1310036, 1424878, 1847644, 1910276, 2620072, 2849756, 3233377, 3342983, 3695288, 3820552, 5699512, 6004843, 6208397, 6466754, 6685966, 12009686, 12416794, 12933508, 13371932, 24019372, 24833588, 25867016, 26743864, 28176571, 42033901, 43458779, 48038744, 49667176, 56353142, 84067802, 86917558, 112706284, 168135604, 173835116, 197235997, 225412568, 336271208, 347670232, 366295423, 394471994, 732590846, 788943988, 1465181692, 1577887976, 2564067961, 2930363384, 5128135922, 10256271844, 20512543688]

約数ペア:

[(1, 20512543688), (2, 10256271844), (4, 5128135922), (7, 2930363384), (8, 2564067961), (13, 1577887976), (14, 1465181692), (26, 788943988), (28, 732590846), (52, 394471994), (56, 366295423), (59, 347670232), (61, 336271208), (91, 225412568), (104, 197235997), (118, 173835116), (122, 168135604), (182, 112706284), (236, 86917558), (244, 84067802), (364, 56353142), (413, 49667176), (427, 48038744), (472, 43458779), (488, 42033901), (728, 28176571), (767, 26743864), (793, 25867016), (826, 24833588), (854, 24019372), (1534, 13371932), (1586, 12933508), (1652, 12416794), (1708, 12009686), (3068, 6685966), (3172, 6466754), (3304, 6208397), (3416, 6004843), (3599, 5699512), (5369, 3820552), (5551, 3695288), (6136, 3342983), (6344, 3233377), (7198, 2849756), (7829, 2620072), (10738, 1910276), (11102, 1847644), (14396, 1424878), (15658, 1310036), (21476, 955138), (22204, 923822), (25193, 814216), (28792, 712439), (31316, 655018), (42952, 477569), (44408, 461911), (46787, 438424), (50386, 407108), (54803, 374296), (62632, 327509), (93574, 219212), (100772, 203554), (101777, 201544), (109606, 187148)]