1581124000

素因数分解:

$2^5\times 5^3\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{311}}^1$

素因数の和:408

約数の個数: 192

約数和(自身を含む): 4121155584

約数和(自身を除く): 2540031584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 41, 50, 62, 80, 82, 100, 124, 125, 155, 160, 164, 200, 205, 248, 250, 310, 311, 328, 400, 410, 496, 500, 620, 622, 656, 775, 800, 820, 992, 1000, 1025, 1240, 1244, 1271, 1312, 1550, 1555, 1640, 2000, 2050, 2480, 2488, 2542, 3100, 3110, 3280, 3875, 4000, 4100, 4960, 4976, 5084, 5125, 6200, 6220, 6355, 6560, 7750, 7775, 8200, 9641, 9952, 10168, 10250, 12400, 12440, 12710, 12751, 15500, 15550, 16400, 19282, 20336, 20500, 24800, 24880, 25420, 25502, 31000, 31100, 31775, 32800, 38564, 38875, 40672, 41000, 48205, 49760, 50840, 51004, 62000, 62200, 63550, 63755, 77128, 77750, 82000, 96410, 101680, 102008, 124000, 124400, 127100, 127510, 154256, 155500, 158875, 164000, 192820, 203360, 204016, 241025, 248800, 254200, 255020, 308512, 311000, 317750, 318775, 385640, 395281, 408032, 482050, 508400, 510040, 622000, 635500, 637550, 771280, 790562, 964100, 1016800, 1020080, 1205125, 1244000, 1271000, 1275100, 1542560, 1581124, 1593875, 1928200, 1976405, 2040160, 2410250, 2542000, 2550200, 3162248, 3187750, 3856400, 3952810, 4820500, 5084000, 5100400, 6324496, 6375500, 7712800, 7905620, 9641000, 9882025, 10200800, 12648992, 12751000, 15811240, 19282000, 19764050, 25502000, 31622480, 38564000, 39528100, 49410125, 51004000, 63244960, 79056200, 98820250, 158112400, 197640500, 316224800, 395281000, 790562000, 1581124000]

約数ペア:

[(1, 1581124000), (2, 790562000), (4, 395281000), (5, 316224800), (8, 197640500), (10, 158112400), (16, 98820250), (20, 79056200), (25, 63244960), (31, 51004000), (32, 49410125), (40, 39528100), (41, 38564000), (50, 31622480), (62, 25502000), (80, 19764050), (82, 19282000), (100, 15811240), (124, 12751000), (125, 12648992), (155, 10200800), (160, 9882025), (164, 9641000), (200, 7905620), (205, 7712800), (248, 6375500), (250, 6324496), (310, 5100400), (311, 5084000), (328, 4820500), (400, 3952810), (410, 3856400), (496, 3187750), (500, 3162248), (620, 2550200), (622, 2542000), (656, 2410250), (775, 2040160), (800, 1976405), (820, 1928200), (992, 1593875), (1000, 1581124), (1025, 1542560), (1240, 1275100), (1244, 1271000), (1271, 1244000), (1312, 1205125), (1550, 1020080), (1555, 1016800), (1640, 964100), (2000, 790562), (2050, 771280), (2480, 637550), (2488, 635500), (2542, 622000), (3100, 510040), (3110, 508400), (3280, 482050), (3875, 408032), (4000, 395281), (4100, 385640), (4960, 318775), (4976, 317750), (5084, 311000), (5125, 308512), (6200, 255020), (6220, 254200), (6355, 248800), (6560, 241025), (7750, 204016), (7775, 203360), (8200, 192820), (9641, 164000), (9952, 158875), (10168, 155500), (10250, 154256), (12400, 127510), (12440, 127100), (12710, 124400), (12751, 124000), (15500, 102008), (15550, 101680), (16400, 96410), (19282, 82000), (20336, 77750), (20500, 77128), (24800, 63755), (24880, 63550), (25420, 62200), (25502, 62000), (31000, 51004), (31100, 50840), (31775, 49760), (32800, 48205), (38564, 41000), (38875, 40672)]