19956870

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{311}}^1$

素因数の和:378

約数の個数: 96

約数和(自身を含む): 56070144

約数和(自身を除く): 36113274

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 30, 31, 45, 46, 62, 69, 90, 93, 115, 138, 155, 186, 207, 230, 279, 310, 311, 345, 414, 465, 558, 622, 690, 713, 930, 933, 1035, 1395, 1426, 1555, 1866, 2070, 2139, 2790, 2799, 3110, 3565, 4278, 4665, 5598, 6417, 7130, 7153, 9330, 9641, 10695, 12834, 13995, 14306, 19282, 21390, 21459, 27990, 28923, 32085, 35765, 42918, 48205, 57846, 64170, 64377, 71530, 86769, 96410, 107295, 128754, 144615, 173538, 214590, 221743, 289230, 321885, 433845, 443486, 643770, 665229, 867690, 1108715, 1330458, 1995687, 2217430, 3326145, 3991374, 6652290, 9978435, 19956870]

約数ペア:

[(1, 19956870), (2, 9978435), (3, 6652290), (5, 3991374), (6, 3326145), (9, 2217430), (10, 1995687), (15, 1330458), (18, 1108715), (23, 867690), (30, 665229), (31, 643770), (45, 443486), (46, 433845), (62, 321885), (69, 289230), (90, 221743), (93, 214590), (115, 173538), (138, 144615), (155, 128754), (186, 107295), (207, 96410), (230, 86769), (279, 71530), (310, 64377), (311, 64170), (345, 57846), (414, 48205), (465, 42918), (558, 35765), (622, 32085), (690, 28923), (713, 27990), (930, 21459), (933, 21390), (1035, 19282), (1395, 14306), (1426, 13995), (1555, 12834), (1866, 10695), (2070, 9641), (2139, 9330), (2790, 7153), (2799, 7130), (3110, 6417), (3565, 5598), (4278, 4665)]