201997840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:209

約数の個数: 160

約数和(自身を含む): 538036992

約数和(自身を除く): 336039152

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 53, 55, 61, 71, 80, 88, 106, 110, 122, 142, 176, 212, 220, 244, 265, 284, 305, 355, 424, 440, 488, 530, 568, 583, 610, 671, 710, 781, 848, 880, 976, 1060, 1136, 1166, 1220, 1342, 1420, 1562, 2120, 2332, 2440, 2684, 2840, 2915, 3124, 3233, 3355, 3763, 3905, 4240, 4331, 4664, 4880, 5368, 5680, 5830, 6248, 6466, 6710, 7526, 7810, 8662, 9328, 10736, 11660, 12496, 12932, 13420, 15052, 15620, 16165, 17324, 18815, 21655, 23320, 25864, 26840, 30104, 31240, 32330, 34648, 35563, 37630, 41393, 43310, 46640, 47641, 51728, 53680, 60208, 62480, 64660, 69296, 71126, 75260, 82786, 86620, 95282, 129320, 142252, 150520, 165572, 173240, 177815, 190564, 206965, 229543, 238205, 258640, 284504, 301040, 331144, 346480, 355630, 381128, 413930, 459086, 476410, 569008, 662288, 711260, 762256, 827860, 918172, 952820, 1147715, 1422520, 1655720, 1836344, 1905640, 2295430, 2524973, 2845040, 3311440, 3672688, 3811280, 4590860, 5049946, 9181720, 10099892, 12624865, 18363440, 20199784, 25249730, 40399568, 50499460, 100998920, 201997840]

約数ペア:

[(1, 201997840), (2, 100998920), (4, 50499460), (5, 40399568), (8, 25249730), (10, 20199784), (11, 18363440), (16, 12624865), (20, 10099892), (22, 9181720), (40, 5049946), (44, 4590860), (53, 3811280), (55, 3672688), (61, 3311440), (71, 2845040), (80, 2524973), (88, 2295430), (106, 1905640), (110, 1836344), (122, 1655720), (142, 1422520), (176, 1147715), (212, 952820), (220, 918172), (244, 827860), (265, 762256), (284, 711260), (305, 662288), (355, 569008), (424, 476410), (440, 459086), (488, 413930), (530, 381128), (568, 355630), (583, 346480), (610, 331144), (671, 301040), (710, 284504), (781, 258640), (848, 238205), (880, 229543), (976, 206965), (1060, 190564), (1136, 177815), (1166, 173240), (1220, 165572), (1342, 150520), (1420, 142252), (1562, 129320), (2120, 95282), (2332, 86620), (2440, 82786), (2684, 75260), (2840, 71126), (2915, 69296), (3124, 64660), (3233, 62480), (3355, 60208), (3763, 53680), (3905, 51728), (4240, 47641), (4331, 46640), (4664, 43310), (4880, 41393), (5368, 37630), (5680, 35563), (5830, 34648), (6248, 32330), (6466, 31240), (6710, 30104), (7526, 26840), (7810, 25864), (8662, 23320), (9328, 21655), (10736, 18815), (11660, 17324), (12496, 16165), (12932, 15620), (13420, 15052)]