20521885.000000000

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{67}}^1\times {\mathrm{97}}^1\times {\mathrm{139}}^1$

素因数の和:318

約数の個数: 96

約数和(自身を含む): 347061120

約数和(自身を除く): 211556970

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 67, 75, 97, 134, 139, 150, 194, 201, 278, 291, 335, 402, 417, 485, 582, 670, 695, 834, 970, 1005, 1390, 1455, 1675, 2010, 2085, 2425, 2910, 3350, 3475, 4170, 4850, 5025, 6499, 6950, 7275, 9313, 10050, 10425, 12998, 13483, 14550, 18626, 19497, 20850, 26966, 27939, 32495, 38994, 40449, 46565, 55878, 64990, 67415, 80898, 93130, 97485, 134830, 139695, 162475, 194970, 202245, 232825, 279390, 324950, 337075, 404490, 465650, 487425, 674150, 698475, 903361, 974850, 1011225, 1396950, 1806722, 2022450, 2710083, 4516805, 5420166, 9033610, 13550415, 22584025, 27100830, 45168050, 67752075, 135504150]

約数ペア:

[(1, 135504150), (2, 67752075), (3, 45168050), (5, 27100830), (6, 22584025), (10, 13550415), (15, 9033610), (25, 5420166), (30, 4516805), (50, 2710083), (67, 2022450), (75, 1806722), (97, 1396950), (134, 1011225), (139, 974850), (150, 903361), (194, 698475), (201, 674150), (278, 487425), (291, 465650), (335, 404490), (402, 337075), (417, 324950), (485, 279390), (582, 232825), (670, 202245), (695, 194970), (834, 162475), (970, 139695), (1005, 134830), (1390, 97485), (1455, 93130), (1675, 80898), (2010, 67415), (2085, 64990), (2425, 55878), (2910, 46565), (3350, 40449), (3475, 38994), (4170, 32495), (4850, 27939), (5025, 26966), (6499, 20850), (6950, 19497), (7275, 18626), (9313, 14550), (10050, 13483), (10425, 12998)]