1225101920

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{307}}^1\times {\mathrm{509}}^1$

素因数の和:845

約数の個数: 144

約数和(自身を含む): 3384445680

約数和(自身を除く): 2159343760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 307, 392, 490, 509, 560, 614, 784, 980, 1018, 1120, 1228, 1535, 1568, 1960, 2036, 2149, 2456, 2545, 3070, 3563, 3920, 4072, 4298, 4912, 5090, 6140, 7126, 7840, 8144, 8596, 9824, 10180, 10745, 12280, 14252, 15043, 16288, 17192, 17815, 20360, 21490, 24560, 24941, 28504, 30086, 34384, 35630, 40720, 42980, 49120, 49882, 57008, 60172, 68768, 71260, 75215, 81440, 85960, 99764, 114016, 120344, 124705, 142520, 150430, 156263, 171920, 199528, 240688, 249410, 285040, 300860, 312526, 343840, 399056, 481376, 498820, 570080, 601720, 625052, 781315, 798112, 997640, 1093841, 1203440, 1250104, 1562630, 1995280, 2187682, 2406880, 2500208, 3125260, 3990560, 4375364, 5000416, 5469205, 6250520, 7656887, 8750728, 10938410, 12501040, 15313774, 17501456, 21876820, 25002080, 30627548, 35002912, 38284435, 43753640, 61255096, 76568870, 87507280, 122510192, 153137740, 175014560, 245020384, 306275480, 612550960, 1225101920]

約数ペア:

[(1, 1225101920), (2, 612550960), (4, 306275480), (5, 245020384), (7, 175014560), (8, 153137740), (10, 122510192), (14, 87507280), (16, 76568870), (20, 61255096), (28, 43753640), (32, 38284435), (35, 35002912), (40, 30627548), (49, 25002080), (56, 21876820), (70, 17501456), (80, 15313774), (98, 12501040), (112, 10938410), (140, 8750728), (160, 7656887), (196, 6250520), (224, 5469205), (245, 5000416), (280, 4375364), (307, 3990560), (392, 3125260), (490, 2500208), (509, 2406880), (560, 2187682), (614, 1995280), (784, 1562630), (980, 1250104), (1018, 1203440), (1120, 1093841), (1228, 997640), (1535, 798112), (1568, 781315), (1960, 625052), (2036, 601720), (2149, 570080), (2456, 498820), (2545, 481376), (3070, 399056), (3563, 343840), (3920, 312526), (4072, 300860), (4298, 285040), (4912, 249410), (5090, 240688), (6140, 199528), (7126, 171920), (7840, 156263), (8144, 150430), (8596, 142520), (9824, 124705), (10180, 120344), (10745, 114016), (12280, 99764), (14252, 85960), (15043, 81440), (16288, 75215), (17192, 71260), (17815, 68768), (20360, 60172), (21490, 57008), (24560, 49882), (24941, 49120), (28504, 42980), (30086, 40720), (34384, 35630)]