19948860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{307}}^1$

素因数の和:360

約数の個数: 108

約数和(自身を含む): 64072008

約数和(自身を除く): 44123148

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 307, 342, 361, 380, 570, 614, 684, 722, 855, 921, 1083, 1140, 1228, 1444, 1535, 1710, 1805, 1842, 2166, 2763, 3070, 3249, 3420, 3610, 3684, 4332, 4605, 5415, 5526, 5833, 6140, 6498, 7220, 9210, 10830, 11052, 11666, 12996, 13815, 16245, 17499, 18420, 21660, 23332, 27630, 29165, 32490, 34998, 52497, 55260, 58330, 64980, 69996, 87495, 104994, 110827, 116660, 174990, 209988, 221654, 262485, 332481, 349980, 443308, 524970, 554135, 664962, 997443, 1049940, 1108270, 1329924, 1662405, 1994886, 2216540, 3324810, 3989772, 4987215, 6649620, 9974430, 19948860]

約数ペア:

[(1, 19948860), (2, 9974430), (3, 6649620), (4, 4987215), (5, 3989772), (6, 3324810), (9, 2216540), (10, 1994886), (12, 1662405), (15, 1329924), (18, 1108270), (19, 1049940), (20, 997443), (30, 664962), (36, 554135), (38, 524970), (45, 443308), (57, 349980), (60, 332481), (76, 262485), (90, 221654), (95, 209988), (114, 174990), (171, 116660), (180, 110827), (190, 104994), (228, 87495), (285, 69996), (307, 64980), (342, 58330), (361, 55260), (380, 52497), (570, 34998), (614, 32490), (684, 29165), (722, 27630), (855, 23332), (921, 21660), (1083, 18420), (1140, 17499), (1228, 16245), (1444, 13815), (1535, 12996), (1710, 11666), (1805, 11052), (1842, 10830), (2166, 9210), (2763, 7220), (3070, 6498), (3249, 6140), (3420, 5833), (3610, 5526), (3684, 5415), (4332, 4605)]