20711100

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1$

素因数の和:196

約数の個数: 144

約数和(自身を含む): 65995776

約数和(自身を除く): 45284676

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 25, 30, 31, 34, 50, 51, 60, 62, 68, 75, 85, 93, 100, 102, 124, 131, 150, 155, 170, 186, 204, 255, 262, 300, 310, 340, 372, 393, 425, 465, 510, 524, 527, 620, 655, 775, 786, 850, 930, 1020, 1054, 1275, 1310, 1550, 1572, 1581, 1700, 1860, 1965, 2108, 2227, 2325, 2550, 2620, 2635, 3100, 3162, 3275, 3930, 4061, 4454, 4650, 5100, 5270, 6324, 6550, 6681, 7860, 7905, 8122, 8908, 9300, 9825, 10540, 11135, 12183, 13100, 13175, 13362, 15810, 16244, 19650, 20305, 22270, 24366, 26350, 26724, 31620, 33405, 39300, 39525, 40610, 44540, 48732, 52700, 55675, 60915, 66810, 69037, 79050, 81220, 101525, 111350, 121830, 133620, 138074, 158100, 167025, 203050, 207111, 222700, 243660, 276148, 304575, 334050, 345185, 406100, 414222, 609150, 668100, 690370, 828444, 1035555, 1218300, 1380740, 1725925, 2071110, 3451850, 4142220, 5177775, 6903700, 10355550, 20711100]

約数ペア:

[(1, 20711100), (2, 10355550), (3, 6903700), (4, 5177775), (5, 4142220), (6, 3451850), (10, 2071110), (12, 1725925), (15, 1380740), (17, 1218300), (20, 1035555), (25, 828444), (30, 690370), (31, 668100), (34, 609150), (50, 414222), (51, 406100), (60, 345185), (62, 334050), (68, 304575), (75, 276148), (85, 243660), (93, 222700), (100, 207111), (102, 203050), (124, 167025), (131, 158100), (150, 138074), (155, 133620), (170, 121830), (186, 111350), (204, 101525), (255, 81220), (262, 79050), (300, 69037), (310, 66810), (340, 60915), (372, 55675), (393, 52700), (425, 48732), (465, 44540), (510, 40610), (524, 39525), (527, 39300), (620, 33405), (655, 31620), (775, 26724), (786, 26350), (850, 24366), (930, 22270), (1020, 20305), (1054, 19650), (1275, 16244), (1310, 15810), (1550, 13362), (1572, 13175), (1581, 13100), (1700, 12183), (1860, 11135), (1965, 10540), (2108, 9825), (2227, 9300), (2325, 8908), (2550, 8122), (2620, 7905), (2635, 7860), (3100, 6681), (3162, 6550), (3275, 6324), (3930, 5270), (4061, 5100), (4454, 4650)]