18849206500

素因数分解:

$2^2\times 5^3\times {\mathrm{19}}^1\times {\mathrm{109}}^2\times {\mathrm{167}}^1$

素因数の和:423

約数の個数: 144

約数和(自身を含む): 43996417920

約数和(自身を除く): 25147211420

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 109, 125, 167, 190, 218, 250, 334, 380, 436, 475, 500, 545, 668, 835, 950, 1090, 1670, 1900, 2071, 2180, 2375, 2725, 3173, 3340, 4142, 4175, 4750, 5450, 6346, 8284, 8350, 9500, 10355, 10900, 11881, 12692, 13625, 15865, 16700, 18203, 20710, 20875, 23762, 27250, 31730, 36406, 41420, 41750, 47524, 51775, 54500, 59405, 63460, 72812, 79325, 83500, 91015, 103550, 118810, 158650, 182030, 207100, 225739, 237620, 258875, 297025, 317300, 345857, 364060, 396625, 451478, 455075, 517750, 594050, 691714, 793250, 902956, 910150, 1035500, 1128695, 1188100, 1383428, 1485125, 1586500, 1729285, 1820300, 1984127, 2257390, 2275375, 2970250, 3458570, 3968254, 4514780, 4550750, 5643475, 5940500, 6917140, 7936508, 8646425, 9101500, 9920635, 11286950, 17292850, 19841270, 22573900, 28217375, 34585700, 37698413, 39682540, 43232125, 49603175, 56434750, 75396826, 86464250, 99206350, 112869500, 150793652, 172928500, 188492065, 198412700, 248015875, 376984130, 496031750, 753968260, 942460325, 992063500, 1884920650, 3769841300, 4712301625, 9424603250, 18849206500]

約数ペア:

[(1, 18849206500), (2, 9424603250), (4, 4712301625), (5, 3769841300), (10, 1884920650), (19, 992063500), (20, 942460325), (25, 753968260), (38, 496031750), (50, 376984130), (76, 248015875), (95, 198412700), (100, 188492065), (109, 172928500), (125, 150793652), (167, 112869500), (190, 99206350), (218, 86464250), (250, 75396826), (334, 56434750), (380, 49603175), (436, 43232125), (475, 39682540), (500, 37698413), (545, 34585700), (668, 28217375), (835, 22573900), (950, 19841270), (1090, 17292850), (1670, 11286950), (1900, 9920635), (2071, 9101500), (2180, 8646425), (2375, 7936508), (2725, 6917140), (3173, 5940500), (3340, 5643475), (4142, 4550750), (4175, 4514780), (4750, 3968254), (5450, 3458570), (6346, 2970250), (8284, 2275375), (8350, 2257390), (9500, 1984127), (10355, 1820300), (10900, 1729285), (11881, 1586500), (12692, 1485125), (13625, 1383428), (15865, 1188100), (16700, 1128695), (18203, 1035500), (20710, 910150), (20875, 902956), (23762, 793250), (27250, 691714), (31730, 594050), (36406, 517750), (41420, 455075), (41750, 451478), (47524, 396625), (51775, 364060), (54500, 345857), (59405, 317300), (63460, 297025), (72812, 258875), (79325, 237620), (83500, 225739), (91015, 207100), (103550, 182030), (118810, 158650)]