205109940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{25703}}^1$

素因数の和:25741

約数の個数: 96

約数和(自身を含む): 690923520

約数和(自身を除く): 485813580

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 57, 60, 70, 76, 84, 95, 105, 114, 133, 140, 190, 210, 228, 266, 285, 380, 399, 420, 532, 570, 665, 798, 1140, 1330, 1596, 1995, 2660, 3990, 7980, 25703, 51406, 77109, 102812, 128515, 154218, 179921, 257030, 308436, 359842, 385545, 488357, 514060, 539763, 719684, 771090, 899605, 976714, 1079526, 1465071, 1542180, 1799210, 1953428, 2159052, 2441785, 2698815, 2930142, 3418499, 3598420, 4883570, 5397630, 5860284, 6836998, 7325355, 9767140, 10255497, 10795260, 13673996, 14650710, 17092495, 20510994, 29301420, 34184990, 41021988, 51277485, 68369980, 102554970, 205109940]

約数ペア:

[(1, 205109940), (2, 102554970), (3, 68369980), (4, 51277485), (5, 41021988), (6, 34184990), (7, 29301420), (10, 20510994), (12, 17092495), (14, 14650710), (15, 13673996), (19, 10795260), (20, 10255497), (21, 9767140), (28, 7325355), (30, 6836998), (35, 5860284), (38, 5397630), (42, 4883570), (57, 3598420), (60, 3418499), (70, 2930142), (76, 2698815), (84, 2441785), (95, 2159052), (105, 1953428), (114, 1799210), (133, 1542180), (140, 1465071), (190, 1079526), (210, 976714), (228, 899605), (266, 771090), (285, 719684), (380, 539763), (399, 514060), (420, 488357), (532, 385545), (570, 359842), (665, 308436), (798, 257030), (1140, 179921), (1330, 154218), (1596, 128515), (1995, 102812), (2660, 77109), (3990, 51406), (7980, 25703)]