20378556800

素因数分解:

$2^7\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{29347}}^1$

素因数の和:29409

約数の個数: 192

約数和(自身を含む): 59390960640

約数和(自身を除く): 39012403840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 31, 32, 35, 40, 50, 56, 62, 64, 70, 80, 100, 112, 124, 128, 140, 155, 160, 175, 200, 217, 224, 248, 280, 310, 320, 350, 400, 434, 448, 496, 560, 620, 640, 700, 775, 800, 868, 896, 992, 1085, 1120, 1240, 1400, 1550, 1600, 1736, 1984, 2170, 2240, 2480, 2800, 3100, 3200, 3472, 3968, 4340, 4480, 4960, 5425, 5600, 6200, 6944, 8680, 9920, 10850, 11200, 12400, 13888, 17360, 19840, 21700, 22400, 24800, 27776, 29347, 34720, 43400, 49600, 58694, 69440, 86800, 99200, 117388, 138880, 146735, 173600, 205429, 234776, 293470, 347200, 410858, 469552, 586940, 694400, 733675, 821716, 909757, 939104, 1027145, 1173880, 1467350, 1643432, 1819514, 1878208, 2054290, 2347760, 2934700, 3286864, 3639028, 3756416, 4108580, 4548785, 4695520, 5135725, 5869400, 6368299, 6573728, 7278056, 8217160, 9097570, 9391040, 10271450, 11738800, 12736598, 13147456, 14556112, 16434320, 18195140, 18782080, 20542900, 22743925, 23477600, 25473196, 26294912, 29112224, 31841495, 32868640, 36390280, 41085800, 45487850, 46955200, 50946392, 58224448, 63682990, 65737280, 72780560, 82171600, 90975700, 93910400, 101892784, 116448896, 127365980, 131474560, 145561120, 159207475, 164343200, 181951400, 203785568, 254731960, 291122240, 318414950, 328686400, 363902800, 407571136, 509463920, 582244480, 636829900, 657372800, 727805600, 815142272, 1018927840, 1273659800, 1455611200, 2037855680, 2547319600, 2911222400, 4075711360, 5094639200, 10189278400, 20378556800]

約数ペア:

[(1, 20378556800), (2, 10189278400), (4, 5094639200), (5, 4075711360), (7, 2911222400), (8, 2547319600), (10, 2037855680), (14, 1455611200), (16, 1273659800), (20, 1018927840), (25, 815142272), (28, 727805600), (31, 657372800), (32, 636829900), (35, 582244480), (40, 509463920), (50, 407571136), (56, 363902800), (62, 328686400), (64, 318414950), (70, 291122240), (80, 254731960), (100, 203785568), (112, 181951400), (124, 164343200), (128, 159207475), (140, 145561120), (155, 131474560), (160, 127365980), (175, 116448896), (200, 101892784), (217, 93910400), (224, 90975700), (248, 82171600), (280, 72780560), (310, 65737280), (320, 63682990), (350, 58224448), (400, 50946392), (434, 46955200), (448, 45487850), (496, 41085800), (560, 36390280), (620, 32868640), (640, 31841495), (700, 29112224), (775, 26294912), (800, 25473196), (868, 23477600), (896, 22743925), (992, 20542900), (1085, 18782080), (1120, 18195140), (1240, 16434320), (1400, 14556112), (1550, 13147456), (1600, 12736598), (1736, 11738800), (1984, 10271450), (2170, 9391040), (2240, 9097570), (2480, 8217160), (2800, 7278056), (3100, 6573728), (3200, 6368299), (3472, 5869400), (3968, 5135725), (4340, 4695520), (4480, 4548785), (4960, 4108580), (5425, 3756416), (5600, 3639028), (6200, 3286864), (6944, 2934700), (8680, 2347760), (9920, 2054290), (10850, 1878208), (11200, 1819514), (12400, 1643432), (13888, 1467350), (17360, 1173880), (19840, 1027145), (21700, 939104), (22400, 909757), (24800, 821716), (27776, 733675), (29347, 694400), (34720, 586940), (43400, 469552), (49600, 410858), (58694, 347200), (69440, 293470), (86800, 234776), (99200, 205429), (117388, 173600), (138880, 146735)]