438786400

素因数分解:

$2^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1361}}^1$

素因数の和:1425

約数の個数: 144

約数和(自身を含む): 1191673728

約数和(自身を除く): 752887328

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 31, 32, 40, 50, 52, 62, 65, 80, 100, 104, 124, 130, 155, 160, 200, 208, 248, 260, 310, 325, 400, 403, 416, 496, 520, 620, 650, 775, 800, 806, 992, 1040, 1240, 1300, 1361, 1550, 1612, 2015, 2080, 2480, 2600, 2722, 3100, 3224, 4030, 4960, 5200, 5444, 6200, 6448, 6805, 8060, 10075, 10400, 10888, 12400, 12896, 13610, 16120, 17693, 20150, 21776, 24800, 27220, 32240, 34025, 35386, 40300, 42191, 43552, 54440, 64480, 68050, 70772, 80600, 84382, 88465, 108880, 136100, 141544, 161200, 168764, 176930, 210955, 217760, 272200, 283088, 322400, 337528, 353860, 421910, 442325, 544400, 548483, 566176, 675056, 707720, 843820, 884650, 1054775, 1088800, 1096966, 1350112, 1415440, 1687640, 1769300, 2109550, 2193932, 2742415, 2830880, 3375280, 3538600, 4219100, 4387864, 5484830, 6750560, 7077200, 8438200, 8775728, 10969660, 13712075, 14154400, 16876400, 17551456, 21939320, 27424150, 33752800, 43878640, 54848300, 87757280, 109696600, 219393200, 438786400]

約数ペア:

[(1, 438786400), (2, 219393200), (4, 109696600), (5, 87757280), (8, 54848300), (10, 43878640), (13, 33752800), (16, 27424150), (20, 21939320), (25, 17551456), (26, 16876400), (31, 14154400), (32, 13712075), (40, 10969660), (50, 8775728), (52, 8438200), (62, 7077200), (65, 6750560), (80, 5484830), (100, 4387864), (104, 4219100), (124, 3538600), (130, 3375280), (155, 2830880), (160, 2742415), (200, 2193932), (208, 2109550), (248, 1769300), (260, 1687640), (310, 1415440), (325, 1350112), (400, 1096966), (403, 1088800), (416, 1054775), (496, 884650), (520, 843820), (620, 707720), (650, 675056), (775, 566176), (800, 548483), (806, 544400), (992, 442325), (1040, 421910), (1240, 353860), (1300, 337528), (1361, 322400), (1550, 283088), (1612, 272200), (2015, 217760), (2080, 210955), (2480, 176930), (2600, 168764), (2722, 161200), (3100, 141544), (3224, 136100), (4030, 108880), (4960, 88465), (5200, 84382), (5444, 80600), (6200, 70772), (6448, 68050), (6805, 64480), (8060, 54440), (10075, 43552), (10400, 42191), (10888, 40300), (12400, 35386), (12896, 34025), (13610, 32240), (16120, 27220), (17693, 24800), (20150, 21776)]