20872635280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{167}}^1\times {\mathrm{307}}^1\times {\mathrm{727}}^1$

素因数の和:1221

約数の個数: 160

約数和(自身を含む): 56052412416

約数和(自身を除く): 35179777136

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 167, 280, 307, 334, 560, 614, 668, 727, 835, 1169, 1228, 1336, 1454, 1535, 1670, 2149, 2338, 2456, 2672, 2908, 3070, 3340, 3635, 4298, 4676, 4912, 5089, 5816, 5845, 6140, 6680, 7270, 8596, 9352, 10178, 10745, 11632, 11690, 12280, 13360, 14540, 17192, 18704, 20356, 21490, 23380, 24560, 25445, 29080, 34384, 40712, 42980, 46760, 50890, 51269, 58160, 81424, 85960, 93520, 101780, 102538, 121409, 171920, 203560, 205076, 223189, 242818, 256345, 358883, 407120, 410152, 446378, 485636, 512690, 607045, 717766, 820304, 849863, 892756, 971272, 1025380, 1115945, 1214090, 1435532, 1562323, 1699726, 1785512, 1794415, 1942544, 2050760, 2231890, 2428180, 2871064, 3124646, 3399452, 3571024, 3588830, 4101520, 4249315, 4463780, 4856360, 5742128, 6249292, 6798904, 7177660, 7811615, 8498630, 8927560, 9712720, 12498584, 13597808, 14355320, 15623230, 16997260, 17855120, 24997168, 28710640, 31246460, 33994520, 37272563, 62492920, 67989040, 74545126, 124985840, 149090252, 186362815, 260907941, 298180504, 372725630, 521815882, 596361008, 745451260, 1043631764, 1304539705, 1490902520, 2087263528, 2609079410, 2981805040, 4174527056, 5218158820, 10436317640, 20872635280]

約数ペア:

[(1, 20872635280), (2, 10436317640), (4, 5218158820), (5, 4174527056), (7, 2981805040), (8, 2609079410), (10, 2087263528), (14, 1490902520), (16, 1304539705), (20, 1043631764), (28, 745451260), (35, 596361008), (40, 521815882), (56, 372725630), (70, 298180504), (80, 260907941), (112, 186362815), (140, 149090252), (167, 124985840), (280, 74545126), (307, 67989040), (334, 62492920), (560, 37272563), (614, 33994520), (668, 31246460), (727, 28710640), (835, 24997168), (1169, 17855120), (1228, 16997260), (1336, 15623230), (1454, 14355320), (1535, 13597808), (1670, 12498584), (2149, 9712720), (2338, 8927560), (2456, 8498630), (2672, 7811615), (2908, 7177660), (3070, 6798904), (3340, 6249292), (3635, 5742128), (4298, 4856360), (4676, 4463780), (4912, 4249315), (5089, 4101520), (5816, 3588830), (5845, 3571024), (6140, 3399452), (6680, 3124646), (7270, 2871064), (8596, 2428180), (9352, 2231890), (10178, 2050760), (10745, 1942544), (11632, 1794415), (11690, 1785512), (12280, 1699726), (13360, 1562323), (14540, 1435532), (17192, 1214090), (18704, 1115945), (20356, 1025380), (21490, 971272), (23380, 892756), (24560, 849863), (25445, 820304), (29080, 717766), (34384, 607045), (40712, 512690), (42980, 485636), (46760, 446378), (50890, 410152), (51269, 407120), (58160, 358883), (81424, 256345), (85960, 242818), (93520, 223189), (101780, 205076), (102538, 203560), (121409, 171920)]