20809703880

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{80173}}^1$

素因数の和:80300

約数の個数: 192

約数和(自身を含む): 78044578560

約数和(自身を除く): 57234874680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 72, 84, 90, 103, 105, 120, 126, 140, 168, 180, 206, 210, 252, 280, 309, 315, 360, 412, 420, 504, 515, 618, 630, 721, 824, 840, 927, 1030, 1236, 1260, 1442, 1545, 1854, 2060, 2163, 2472, 2520, 2884, 3090, 3605, 3708, 4120, 4326, 4635, 5768, 6180, 6489, 7210, 7416, 8652, 9270, 10815, 12360, 12978, 14420, 17304, 18540, 21630, 25956, 28840, 32445, 37080, 43260, 51912, 64890, 80173, 86520, 129780, 160346, 240519, 259560, 320692, 400865, 481038, 561211, 641384, 721557, 801730, 962076, 1122422, 1202595, 1443114, 1603460, 1683633, 1924152, 2244844, 2405190, 2806055, 2886228, 3206920, 3367266, 3607785, 4489688, 4810380, 5050899, 5612110, 5772456, 6734532, 7215570, 8257819, 8418165, 9620760, 10101798, 11224220, 13469064, 14431140, 16515638, 16836330, 20203596, 22448440, 24773457, 25254495, 28862280, 33031276, 33672660, 40407192, 41289095, 49546914, 50508990, 57804733, 66062552, 67345320, 74320371, 82578190, 99093828, 101017980, 115609466, 123867285, 148640742, 165156380, 173414199, 198187656, 202035960, 231218932, 247734570, 289023665, 297281484, 330312760, 346828398, 371601855, 462437864, 495469140, 520242597, 578047330, 594562968, 693656796, 743203710, 867070995, 990938280, 1040485194, 1156094660, 1387313592, 1486407420, 1734141990, 2080970388, 2312189320, 2601212985, 2972814840, 3468283980, 4161940776, 5202425970, 6936567960, 10404851940, 20809703880]

約数ペア:

[(1, 20809703880), (2, 10404851940), (3, 6936567960), (4, 5202425970), (5, 4161940776), (6, 3468283980), (7, 2972814840), (8, 2601212985), (9, 2312189320), (10, 2080970388), (12, 1734141990), (14, 1486407420), (15, 1387313592), (18, 1156094660), (20, 1040485194), (21, 990938280), (24, 867070995), (28, 743203710), (30, 693656796), (35, 594562968), (36, 578047330), (40, 520242597), (42, 495469140), (45, 462437864), (56, 371601855), (60, 346828398), (63, 330312760), (70, 297281484), (72, 289023665), (84, 247734570), (90, 231218932), (103, 202035960), (105, 198187656), (120, 173414199), (126, 165156380), (140, 148640742), (168, 123867285), (180, 115609466), (206, 101017980), (210, 99093828), (252, 82578190), (280, 74320371), (309, 67345320), (315, 66062552), (360, 57804733), (412, 50508990), (420, 49546914), (504, 41289095), (515, 40407192), (618, 33672660), (630, 33031276), (721, 28862280), (824, 25254495), (840, 24773457), (927, 22448440), (1030, 20203596), (1236, 16836330), (1260, 16515638), (1442, 14431140), (1545, 13469064), (1854, 11224220), (2060, 10101798), (2163, 9620760), (2472, 8418165), (2520, 8257819), (2884, 7215570), (3090, 6734532), (3605, 5772456), (3708, 5612110), (4120, 5050899), (4326, 4810380), (4635, 4489688), (5768, 3607785), (6180, 3367266), (6489, 3206920), (7210, 2886228), (7416, 2806055), (8652, 2405190), (9270, 2244844), (10815, 1924152), (12360, 1683633), (12978, 1603460), (14420, 1443114), (17304, 1202595), (18540, 1122422), (21630, 962076), (25956, 801730), (28840, 721557), (32445, 641384), (37080, 561211), (43260, 481038), (51912, 400865), (64890, 320692), (80173, 259560), (86520, 240519), (129780, 160346)]