19983404520

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{178487}}^1$

素因数の和:178815

約数の個数: 96

約数和(自身を含む): 65155259520

約数和(自身を除く): 45171855000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 311, 360, 622, 933, 1244, 1555, 1866, 2488, 2799, 3110, 3732, 4665, 5598, 6220, 7464, 9330, 11196, 12440, 13995, 18660, 22392, 27990, 37320, 55980, 111960, 178487, 356974, 535461, 713948, 892435, 1070922, 1427896, 1606383, 1784870, 2141844, 2677305, 3212766, 3569740, 4283688, 5354610, 6425532, 7139480, 8031915, 10709220, 12851064, 16063830, 21418440, 32127660, 55509457, 64255320, 111018914, 166528371, 222037828, 277547285, 333056742, 444075656, 499585113, 555094570, 666113484, 832641855, 999170226, 1110189140, 1332226968, 1665283710, 1998340452, 2220378280, 2497925565, 3330567420, 3996680904, 4995851130, 6661134840, 9991702260, 19983404520]

約数ペア:

[(1, 19983404520), (2, 9991702260), (3, 6661134840), (4, 4995851130), (5, 3996680904), (6, 3330567420), (8, 2497925565), (9, 2220378280), (10, 1998340452), (12, 1665283710), (15, 1332226968), (18, 1110189140), (20, 999170226), (24, 832641855), (30, 666113484), (36, 555094570), (40, 499585113), (45, 444075656), (60, 333056742), (72, 277547285), (90, 222037828), (120, 166528371), (180, 111018914), (311, 64255320), (360, 55509457), (622, 32127660), (933, 21418440), (1244, 16063830), (1555, 12851064), (1866, 10709220), (2488, 8031915), (2799, 7139480), (3110, 6425532), (3732, 5354610), (4665, 4283688), (5598, 3569740), (6220, 3212766), (7464, 2677305), (9330, 2141844), (11196, 1784870), (12440, 1606383), (13995, 1427896), (18660, 1070922), (22392, 892435), (27990, 713948), (37320, 535461), (55980, 356974), (111960, 178487)]