20339550

素因数分解:

$2^1\times 3^2\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{587}}^1$

素因数の和:623

約数の個数: 144

約数和(自身を含む): 68245632

約数和(自身を除く): 47906082

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 11, 14, 15, 18, 21, 22, 25, 30, 33, 35, 42, 45, 50, 55, 63, 66, 70, 75, 77, 90, 99, 105, 110, 126, 150, 154, 165, 175, 198, 210, 225, 231, 275, 315, 330, 350, 385, 450, 462, 495, 525, 550, 587, 630, 693, 770, 825, 990, 1050, 1155, 1174, 1386, 1575, 1650, 1761, 1925, 2310, 2475, 2935, 3150, 3465, 3522, 3850, 4109, 4950, 5283, 5775, 5870, 6457, 6930, 8218, 8805, 10566, 11550, 12327, 12914, 14675, 17325, 17610, 19371, 20545, 24654, 26415, 29350, 32285, 34650, 36981, 38742, 41090, 44025, 45199, 52830, 58113, 61635, 64570, 73962, 88050, 90398, 96855, 102725, 116226, 123270, 132075, 135597, 161425, 184905, 193710, 205450, 225995, 264150, 271194, 290565, 308175, 322850, 369810, 406791, 451990, 484275, 581130, 616350, 677985, 813582, 924525, 968550, 1129975, 1355970, 1452825, 1849050, 2033955, 2259950, 2905650, 3389925, 4067910, 6779850, 10169775, 20339550]

約数ペア:

[(1, 20339550), (2, 10169775), (3, 6779850), (5, 4067910), (6, 3389925), (7, 2905650), (9, 2259950), (10, 2033955), (11, 1849050), (14, 1452825), (15, 1355970), (18, 1129975), (21, 968550), (22, 924525), (25, 813582), (30, 677985), (33, 616350), (35, 581130), (42, 484275), (45, 451990), (50, 406791), (55, 369810), (63, 322850), (66, 308175), (70, 290565), (75, 271194), (77, 264150), (90, 225995), (99, 205450), (105, 193710), (110, 184905), (126, 161425), (150, 135597), (154, 132075), (165, 123270), (175, 116226), (198, 102725), (210, 96855), (225, 90398), (231, 88050), (275, 73962), (315, 64570), (330, 61635), (350, 58113), (385, 52830), (450, 45199), (462, 44025), (495, 41090), (525, 38742), (550, 36981), (587, 34650), (630, 32285), (693, 29350), (770, 26415), (825, 24654), (990, 20545), (1050, 19371), (1155, 17610), (1174, 17325), (1386, 14675), (1575, 12914), (1650, 12327), (1761, 11550), (1925, 10566), (2310, 8805), (2475, 8218), (2935, 6930), (3150, 6457), (3465, 5870), (3522, 5775), (3850, 5283), (4109, 4950)]