201658640

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{199}}^1\times {\mathrm{239}}^1$

素因数の和:504

約数の個数: 80

約数和(自身を含む): 482112000

約数和(自身を除く): 280453360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 199, 212, 239, 265, 398, 424, 478, 530, 796, 848, 956, 995, 1060, 1195, 1592, 1912, 1990, 2120, 2390, 3184, 3824, 3980, 4240, 4780, 7960, 9560, 10547, 12667, 15920, 19120, 21094, 25334, 42188, 47561, 50668, 52735, 63335, 84376, 95122, 101336, 105470, 126670, 168752, 190244, 202672, 210940, 237805, 253340, 380488, 421880, 475610, 506680, 760976, 843760, 951220, 1013360, 1902440, 2520733, 3804880, 5041466, 10082932, 12603665, 20165864, 25207330, 40331728, 50414660, 100829320, 201658640]

約数ペア:

[(1, 201658640), (2, 100829320), (4, 50414660), (5, 40331728), (8, 25207330), (10, 20165864), (16, 12603665), (20, 10082932), (40, 5041466), (53, 3804880), (80, 2520733), (106, 1902440), (199, 1013360), (212, 951220), (239, 843760), (265, 760976), (398, 506680), (424, 475610), (478, 421880), (530, 380488), (796, 253340), (848, 237805), (956, 210940), (995, 202672), (1060, 190244), (1195, 168752), (1592, 126670), (1912, 105470), (1990, 101336), (2120, 95122), (2390, 84376), (3184, 63335), (3824, 52735), (3980, 50668), (4240, 47561), (4780, 42188), (7960, 25334), (9560, 21094), (10547, 19120), (12667, 15920)]