20280491270

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{251}}^1\times {\mathrm{443}}^1$

素因数の和:798

約数の個数: 128

約数和(自身を含む): 41955314688

約数和(自身を除く): 21674823418

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 61, 65, 115, 122, 130, 230, 251, 299, 305, 443, 502, 598, 610, 793, 886, 1255, 1403, 1495, 1586, 2215, 2510, 2806, 2990, 3263, 3965, 4430, 5759, 5773, 6526, 7015, 7930, 10189, 11518, 11546, 14030, 15311, 16315, 18239, 20378, 27023, 28795, 28865, 30622, 32630, 36478, 50945, 54046, 57590, 57730, 75049, 76555, 91195, 101890, 111193, 132457, 135115, 150098, 153110, 182390, 199043, 222386, 264914, 270230, 351299, 352153, 375245, 398086, 555965, 621529, 662285, 702598, 704306, 750490, 995215, 1111930, 1243058, 1324570, 1445509, 1756495, 1760765, 1990430, 2557439, 2891018, 3107645, 3512990, 3521530, 4577989, 5114878, 6215290, 6782773, 7227545, 8079877, 9155978, 12787195, 13565546, 14455090, 16159754, 22889945, 25574390, 33246707, 33913865, 40399385, 45779890, 66493414, 67827730, 80798770, 88176049, 156003779, 166233535, 176352098, 312007558, 332467070, 440880245, 780018895, 881760490, 1560037790, 2028049127, 4056098254, 10140245635, 20280491270]

約数ペア:

[(1, 20280491270), (2, 10140245635), (5, 4056098254), (10, 2028049127), (13, 1560037790), (23, 881760490), (26, 780018895), (46, 440880245), (61, 332467070), (65, 312007558), (115, 176352098), (122, 166233535), (130, 156003779), (230, 88176049), (251, 80798770), (299, 67827730), (305, 66493414), (443, 45779890), (502, 40399385), (598, 33913865), (610, 33246707), (793, 25574390), (886, 22889945), (1255, 16159754), (1403, 14455090), (1495, 13565546), (1586, 12787195), (2215, 9155978), (2510, 8079877), (2806, 7227545), (2990, 6782773), (3263, 6215290), (3965, 5114878), (4430, 4577989), (5759, 3521530), (5773, 3512990), (6526, 3107645), (7015, 2891018), (7930, 2557439), (10189, 1990430), (11518, 1760765), (11546, 1756495), (14030, 1445509), (15311, 1324570), (16315, 1243058), (18239, 1111930), (20378, 995215), (27023, 750490), (28795, 704306), (28865, 702598), (30622, 662285), (32630, 621529), (36478, 555965), (50945, 398086), (54046, 375245), (57590, 352153), (57730, 351299), (75049, 270230), (76555, 264914), (91195, 222386), (101890, 199043), (111193, 182390), (132457, 153110), (135115, 150098)]