51431940

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{40819}}^1$

素因数の和:40841

約数の個数: 72

約数和(自身を含む): 178301760

約数和(自身を除く): 126869820

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 40819, 81638, 122457, 163276, 204095, 244914, 285733, 367371, 408190, 489828, 571466, 612285, 734742, 816380, 857199, 1142932, 1224570, 1428665, 1469484, 1714398, 1836855, 2449140, 2571597, 2857330, 3428796, 3673710, 4285995, 5143194, 5714660, 7347420, 8571990, 10286388, 12857985, 17143980, 25715970, 51431940]

約数ペア:

[(1, 51431940), (2, 25715970), (3, 17143980), (4, 12857985), (5, 10286388), (6, 8571990), (7, 7347420), (9, 5714660), (10, 5143194), (12, 4285995), (14, 3673710), (15, 3428796), (18, 2857330), (20, 2571597), (21, 2449140), (28, 1836855), (30, 1714398), (35, 1469484), (36, 1428665), (42, 1224570), (45, 1142932), (60, 857199), (63, 816380), (70, 734742), (84, 612285), (90, 571466), (105, 489828), (126, 408190), (140, 367371), (180, 285733), (210, 244914), (252, 204095), (315, 163276), (420, 122457), (630, 81638), (1260, 40819)]