16811600

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:145

約数の個数: 120

約数和(自身を含む): 45043992

約数和(自身を除く): 28232392

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 53, 61, 65, 80, 100, 104, 106, 122, 130, 200, 208, 212, 244, 260, 265, 305, 325, 400, 424, 488, 520, 530, 610, 650, 689, 793, 848, 976, 1040, 1060, 1220, 1300, 1325, 1378, 1525, 1586, 2120, 2440, 2600, 2650, 2756, 3050, 3172, 3233, 3445, 3965, 4240, 4880, 5200, 5300, 5512, 6100, 6344, 6466, 6890, 7930, 10600, 11024, 12200, 12688, 12932, 13780, 15860, 16165, 17225, 19825, 21200, 24400, 25864, 27560, 31720, 32330, 34450, 39650, 42029, 51728, 55120, 63440, 64660, 68900, 79300, 80825, 84058, 129320, 137800, 158600, 161650, 168116, 210145, 258640, 275600, 317200, 323300, 336232, 420290, 646600, 672464, 840580, 1050725, 1293200, 1681160, 2101450, 3362320, 4202900, 8405800, 16811600]

約数ペア:

[(1, 16811600), (2, 8405800), (4, 4202900), (5, 3362320), (8, 2101450), (10, 1681160), (13, 1293200), (16, 1050725), (20, 840580), (25, 672464), (26, 646600), (40, 420290), (50, 336232), (52, 323300), (53, 317200), (61, 275600), (65, 258640), (80, 210145), (100, 168116), (104, 161650), (106, 158600), (122, 137800), (130, 129320), (200, 84058), (208, 80825), (212, 79300), (244, 68900), (260, 64660), (265, 63440), (305, 55120), (325, 51728), (400, 42029), (424, 39650), (488, 34450), (520, 32330), (530, 31720), (610, 27560), (650, 25864), (689, 24400), (793, 21200), (848, 19825), (976, 17225), (1040, 16165), (1060, 15860), (1220, 13780), (1300, 12932), (1325, 12688), (1378, 12200), (1525, 11024), (1586, 10600), (2120, 7930), (2440, 6890), (2600, 6466), (2650, 6344), (2756, 6100), (3050, 5512), (3172, 5300), (3233, 5200), (3445, 4880), (3965, 4240)]