201217280

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{461}}^1$

素因数の和:524

約数の個数: 144

約数和(自身を含む): 543932928

約数和(自身を除く): 342715648

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 32, 40, 44, 55, 62, 64, 80, 88, 110, 124, 128, 155, 160, 176, 220, 248, 256, 310, 320, 341, 352, 440, 461, 496, 620, 640, 682, 704, 880, 922, 992, 1240, 1280, 1364, 1408, 1705, 1760, 1844, 1984, 2305, 2480, 2728, 2816, 3410, 3520, 3688, 3968, 4610, 4960, 5071, 5456, 6820, 7040, 7376, 7936, 9220, 9920, 10142, 10912, 13640, 14080, 14291, 14752, 18440, 19840, 20284, 21824, 25355, 27280, 28582, 29504, 36880, 39680, 40568, 43648, 50710, 54560, 57164, 59008, 71455, 73760, 81136, 87296, 101420, 109120, 114328, 118016, 142910, 147520, 157201, 162272, 202840, 218240, 228656, 285820, 295040, 314402, 324544, 405680, 436480, 457312, 571640, 590080, 628804, 649088, 786005, 811360, 914624, 1143280, 1257608, 1298176, 1572010, 1622720, 1829248, 2286560, 2515216, 3144020, 3245440, 3658496, 4573120, 5030432, 6288040, 6490880, 9146240, 10060864, 12576080, 18292480, 20121728, 25152160, 40243456, 50304320, 100608640, 201217280]

約数ペア:

[(1, 201217280), (2, 100608640), (4, 50304320), (5, 40243456), (8, 25152160), (10, 20121728), (11, 18292480), (16, 12576080), (20, 10060864), (22, 9146240), (31, 6490880), (32, 6288040), (40, 5030432), (44, 4573120), (55, 3658496), (62, 3245440), (64, 3144020), (80, 2515216), (88, 2286560), (110, 1829248), (124, 1622720), (128, 1572010), (155, 1298176), (160, 1257608), (176, 1143280), (220, 914624), (248, 811360), (256, 786005), (310, 649088), (320, 628804), (341, 590080), (352, 571640), (440, 457312), (461, 436480), (496, 405680), (620, 324544), (640, 314402), (682, 295040), (704, 285820), (880, 228656), (922, 218240), (992, 202840), (1240, 162272), (1280, 157201), (1364, 147520), (1408, 142910), (1705, 118016), (1760, 114328), (1844, 109120), (1984, 101420), (2305, 87296), (2480, 81136), (2728, 73760), (2816, 71455), (3410, 59008), (3520, 57164), (3688, 54560), (3968, 50710), (4610, 43648), (4960, 40568), (5071, 39680), (5456, 36880), (6820, 29504), (7040, 28582), (7376, 27280), (7936, 25355), (9220, 21824), (9920, 20284), (10142, 19840), (10912, 18440), (13640, 14752), (14080, 14291)]